Jenjamin3000/MNLP_M3_MCQA_before_FT · Datasets at Hugging Face

id stringlengths 6 15	question_type stringclasses 1 value	question stringlengths 15 683	choices listlengths 4 4	answer stringclasses 5 values	explanation stringclasses 481 values
sciq-4113	multiple_choice	What is defined as force per unit area?	[ "energy", "resistance", "momentum", "pressure" ]	D
sciq-1747	multiple_choice	What is the name for a parasite that causes disease?	[ "microbes", "fungi", "enfluenza", "pathogen" ]	D
scienceQA-6792	multiple_choice	How long is a guitar?	[ "32 feet", "32 yards", "32 inches", "32 miles" ]	C	The best estimate for the length of a guitar is 32 inches. 32 feet, 32 yards, and 32 miles are all too long.
ai2_arc-1075	multiple_choice	Which of the following can be caused by weathering?	[ "cracks forming in a boulder", "rocks melting to form magma", "glaciers forming on a mountainside", "pebbles combining to form a large rock" ]	A
sciq-7080	multiple_choice	Which law refers to the electron charge remaining the same during transfer?	[ "law of change", "law of construct of charge", "law of conservation of speculation", "law of conservation of charge" ]	D
scienceQA-2767	multiple_choice	How long is a soccer field?	[ "110 kilometers", "110 meters", "110 centimeters", "110 millimeters" ]	B	The best estimate for the length of a soccer field is 110 meters. 110 millimeters and 110 centimeters are too short. 110 kilometers is too long.
sciq-5832	multiple_choice	The radiation exposure is determined by the number of what times the quality factor of the radiation?	[ "rads", "beacons", "units", "pounds" ]	A
sciq-2114	multiple_choice	What is formed when two dna strands link together in an antiparallel direction and are twisted?	[ "RNA", "anti-helix", "double helix", "guanine" ]	C
sciq-629	multiple_choice	As per hutton's unconformity, what happened to the intermediate layers of rock?	[ "they fused", "they expanded", "they metamorphized", "they eroded away" ]	D
sciq-907	multiple_choice	What is the germ for a group of atoms within a molecule that reacts similarly anywhere it appears in different compounds?	[ "atomic group", "molecular group", "functional group", "thermal group" ]	C
sciq-4698	multiple_choice	While populations with unlimited resources grow exponentially, the population of a species will level off when what limit of its environment is reached?	[ "niche", "carrying capacity", "reproduction", "extinction" ]	B
sciq-9681	multiple_choice	The liver has three main components: hepatocytes, bile canaliculi, and this?	[ "hepatic sinusoids", "blood sinusoids", "tissue sinusoids", "coronary sinusoids" ]	A
sciq-1841	multiple_choice	What is the term for the height of the wave?	[ "amplitude", "vibration", "frequency", "magnitude" ]	A
sciq-11580	multiple_choice	What term refers to the sequence of community and ecosystem changes after a disturbance?	[ "progressions", "ecological succession", "physiological succession", "disturbance succession" ]	B
sciq-11429	multiple_choice	By multiplying the force applied by the perpendicular component of the moment arm,what is determined?	[ "intensities", "radiation", "torques", "pressure" ]	C
sciq-9630	multiple_choice	Resonance has been used in what kind of human-made recreational objects since prehistoric times?	[ "toys", "musical instruments", "arrows", "paintbrushes" ]	B
sciq-5244	multiple_choice	What is the gel-like material between the cell membrane and the nucleus called?	[ "mucus", "vacuole", "cytoplasm", "ribosome" ]	C
sciq-4503	multiple_choice	The voltage is measured using a voltmeter, which measures which difference across two points?	[ "average difference", "Distance", "actual difference", "potential difference" ]	D
ai2_arc-257	multiple_choice	What do ice, a rock, and a piece of aluminum have in common?	[ "They are all solids.", "They are all liquids.", "They are all minerals.", "They are all elements." ]	A
ai2_arc-777	multiple_choice	A student freezes some orange juice. Which of the following statements best describes how the orange juice is different after it is frozen?	[ "It is a liquid.", "It weighs more.", "It stays in one shape.", "It takes up less space." ]	C
sciq-9724	multiple_choice	What term is used to describe a simple diagram that shows one way energy flows through an ecosystem?	[ "water cycle", "food pyramid", "food chain", "fuel chain" ]	C
sciq-1138	multiple_choice	What are the two main minerals found in ocean water?	[ "sodium, chloride", "quartz, carbon", "dioxide , chloride", "carbon , chloride" ]	A
sciq-3166	multiple_choice	Researchers have also used insect courtship to explore genetic variation underlying differences in what?	[ "instance", "behavior", "function", "reproduction" ]	B
sciq-424	multiple_choice	What kind of mountainous formation can often be found near trenches?	[ "caves", "volcanoes", "craters", "earthquakes" ]	B
sciq-8245	multiple_choice	What are ionic substances completely held together by?	[ "magnetic bonds", "ionic bonds", "thermal bonds", "localized bonds" ]	B
sciq-6190	multiple_choice	The period of life between the start of puberty and the beginning of adulthood is called?	[ "old age", "prenatal", "adolescence", "youth" ]	C
sciq-5309	multiple_choice	What does interspecific competition between species often lead to?	[ "immigration", "extinction", "symbiosis", "evolution" ]	B
scienceQA-11158	multiple_choice	Select the fish below.	[ "Nile crocodile", "painted stork", "cane toad", "seahorse" ]	D	A seahorse is a fish. It lives underwater. It has fins, not limbs. Seahorses live in shallow, warm water. They can use their tails to hold on to plants. A painted stork is a bird. It has feathers, two wings, and a beak. Storks wade in shallow water to look for food. Storks eat fish, insects, worms, and other small animals. A cane toad is an amphibian. It has moist skin and begins its life in water. Toads do not have teeth! They swallow their food whole. A Nile crocodile is a reptile. It has scaly, waterproof skin. Crocodiles hunt their prey in or near water.
sciq-2683	multiple_choice	What do you call the state in which a plant slows down cellular activities and may shed its leaves?	[ "germination", "recession", "hibernation", "dormancy" ]	D
sciq-4417	multiple_choice	What takes place directly after developing a hypothesis in the scientific method process?	[ "testing the hypothesis", "gathering materials", "independent variables", "making a conclusion" ]	A
ai2_arc-1019	multiple_choice	Which statement best describes a neutron?	[ "It has a negative charge.", "It moves around the nucleus.", "It adds mass to the nucleus.", "It has a positive charge." ]	C
sciq-10528	multiple_choice	Amniotes are animals that produce eggs with membranes possessing what property, which allowed them to lay eggs on land?	[ "waterproof", "absorbent", "hard", "heavy" ]	A
sciq-11045	multiple_choice	The two parathyroid glands are located behind what gland?	[ "hypothalmus", "thymus", "thyroid", "pituitary gland" ]	C
sciq-8651	multiple_choice	Catecholamines are a class of amine hormones synthesised form which amino acid?	[ "tyrosine", "phenylalanine", "dopamine", "epinephrine" ]	A
ai2_arc-86	multiple_choice	When a mirror is placed by a fish bowl with a beta fish swimming inside, the beta fish sees what appears to be another fish. This occurs because of	[ "absorption.", "refraction.", "reflection.", "diffraction." ]	C
sciq-9646	multiple_choice	The cytoskeleton crisscrosses the cytoplasm, this gives what to the cell?	[ "internal passageway", "external framework", "internal framework", "external passageway" ]	C
sciq-7078	multiple_choice	In what route do water and solutes move along the continuum of cytosol?	[ "symplastic", "hydrophylic", "nonvascular", "hydrophobic" ]	A
sciq-8756	multiple_choice	Elements are either metals, nonmetals, or what?	[ "partial metals", "unstable metals", "semimetals", "reactive metals" ]	C
sciq-3821	multiple_choice	What is a diagram that shows a single way that energy flows throughout an ecosystem?	[ "food chain", "dependent chain", "water cycle", "fuel chain" ]	A
sciq-2789	multiple_choice	What is the main organ required for respiration in mammals?	[ "the brain", "the heart", "the diaphragm", "the lungs" ]	D
sciq-3536	multiple_choice	The periodic table is an arrangement of the elements in order of increasing what?	[ "gravity numbers", "negative numbers", "metallic numbers", "atomic numbers" ]	D
sciq-7925	multiple_choice	What are long chains of amino acids?	[ "Fatty Acid Chains", "proteins", "cells", "lipids" ]	B
sciq-362	multiple_choice	Electrical potential energy can be described by the equation pe = qv, where q is the electric charge and v is what?	[ "wavelength density", "frequency", "amplitude", "voltage" ]	D
sciq-7032	multiple_choice	Silver and ordinary table salt are two examples of chemical what?	[ "microbes", "organism", "substances", "impurities" ]	C
sciq-9137	multiple_choice	When did new plants start sprouting after the forest fire?	[ "five months later", "two months later", "two weeks later", "two days later" ]	B
sciq-10059	multiple_choice	Hemolymph bathes organs directly in arthropods and most molluscs, due to an open type of what system?	[ "reproductive", "circulatory", "nervous", "pulmonary" ]	B
ai2_arc-324	multiple_choice	Bees can see wavelengths of only yellow, blue, and ultraviolet light. Many plant flowers consist of yellow, blue, and ultraviolet markings that are near the center of the flower. Which sentence describes which organisms benefit from this and explains why?	[ "Only plants benefit, because bees are unable to reach a food source on the plant.", "Only bees benefit, because flowers are damaged by bees.", "Neither bees nor plants benefit, because it does not help either to reproduce.", "Both bees and plants benefit, because bees find food and plants are aided in reproduction." ]	D
ai2_arc-814	multiple_choice	One astronomical unit is the average distance between the Earth and the Sun. This unit is most often used to describe the distance between which two objects?	[ "from galaxy to galaxy", "from Saturn to Mercury", "from the Sun to Proxima Centauri", "from the Big Dipper to the Little Dipper" ]	B
sciq-8768	multiple_choice	Hormones, ions, and neurotransmitters are all types of what?	[ "proteins", "nutrients", "pathogens", "chemical signals" ]	D
sciq-1201	multiple_choice	Most thoracic vertebrae have two facets that articulate with the head of what structure?	[ "calf", "pelvic", "rib", "heart" ]	C
sciq-2147	multiple_choice	What increases the size of a population's gene pool?	[ "mutations", "microbes", "mass extinction", "natural selection" ]	A
sciq-7637	multiple_choice	The radiocarpal and midcarpal joints are responsible for all movements of the hand and what other part of the body?	[ "shoulder", "fingers", "foot", "wrist" ]	D
ai2_arc-722	multiple_choice	When is wood a nonrenewable resource?	[ "When more trees are harvested than are replanted.", "When trees are harvested and replanted at the same rate.", "When trees are used as an energy resource.", "When trees are used as a material resource." ]	A
sciq-38	multiple_choice	Fungus-like protist saprobes play what role in a food chain and are specialized to absorb nutrients from nonliving organic matter, such as dead organisms or their wastes?	[ "Soil", "aphids", "decomposers", "fluxes" ]	C
sciq-1808	multiple_choice	What element has the atomic number 16?	[ "sulfur", "oxygen", "helium", "neon" ]	A
sciq-3261	multiple_choice	What type of cells in the body fluids and tissues of most animals specifically interact with and destroy pathogens?	[ "Dendritic cells", "Microglial cells", "immune cells", "White blood cells" ]	C
ai2_arc-293	multiple_choice	Oscar is investigating how many days it takes for a chick to hatch from an egg. Which number of eggs would give Oscar the most reliable results?	[ "1", "3", "5", "7" ]	D
sciq-11261	multiple_choice	The rate of the accumulation of neutral what serves as a type of population-based biological clock?	[ "prokaryotic", "enzymes", "eukaryotes", "polymorphisms" ]	D
sciq-5760	multiple_choice	What is the center of an earthquake called?	[ "the core", "the magnitude", "the impact", "the epicenter" ]	D
sciq-9682	multiple_choice	What bone is is one of a pair that together form the upper jaw, much of the hard palate, the medial floor of the orbit, and the lateral base of the nose?	[ "mandibular bone", "maxillary bone", "mastoid process", "nasal bone" ]	B
sciq-264	multiple_choice	What keeps the moon orbiting earth?	[ "axial tilt", "Coriolis effect", "gravity", "the Sun" ]	C
ai2_arc-1055	multiple_choice	A hard hat would be used to protect a student during which type of investigation?	[ "a field trip to a museum of geology", "a field investigation of rock layers in a hillside", "a laboratory demonstration on the hardness of minerals", "a laboratory investigation of the identification of fossils" ]	B
sciq-10504	multiple_choice	Inducible enzymes usually function in what type of pathways?	[ "catabolic", "enzymatic", "biogenic", "anabolic" ]	A
sciq-4104	multiple_choice	What is the name for something that consists of all the population in a given area together with the nonliving environment?	[ "totality", "ecosystem", "web", "habitat" ]	B
sciq-3519	multiple_choice	What is the percentage of earthquakes that take place within a plate, away from plate boundaries?	[ "6%", "4 %", "3 %", "5%" ]	D
sciq-7565	multiple_choice	Though often regarded as the supporting cast of the nervous system, glial cells in the brain actually outnumber what by a factor of ten?	[ "neurons", "muscles", "electrons", "blood cells" ]	A
sciq-11460	multiple_choice	What is a renewable resource that can take thousand of years to form?	[ "sunlight", "wind", "soil", "water" ]	C
sciq-10580	multiple_choice	Which gas is responsible for global warming?	[ "ozone", "oxygen", "carbon dioxide", "hydrocarbons" ]	C
ai2_arc-245	multiple_choice	You need to move products across the ocean from Boston to Europe. What are your choices?	[ "ship or airplane", "truck or ship", "truck or airplane", "tunnel or ship" ]	A
sciq-238	multiple_choice	What do living things need to survive?	[ "molecules", "oxygen", "nutrients", "heat" ]	C
sciq-10677	multiple_choice	The populations that live in the same area form this?	[ "a colony", "a biome", "a community", "a habitat" ]	C
sciq-191	multiple_choice	Habitat loss, introduced species, overharvesting, and global change are major threats to what?	[ "the earth's gravity", "biodiversity", "the sun", "transportation" ]	B
ai2_arc-617	multiple_choice	Charisma has a goldfish she keeps in a tank. She planted several underwater plants in the bottom of the tank. How are the goldfish and the plants in the tank similar?	[ "Both add oxygen to the water.", "Both perform photosynthesis.", "Both are made up of cells.", "Both eat food." ]	C
ai2_arc-945	multiple_choice	Stout beardfish live in the deep ocean. They live so far down that there is no light. Which characteristic would best help stout beardfish to survive in the dark?	[ "a mouth full of bristles", "a brightly colored body", "the ability to swim quickly", "two whiskers that locate food" ]	D
sciq-5495	multiple_choice	The ordovician-silurian extinction event is the first recorded mass extinction and the second largest. during this period, about what percent of marine species went extinct?	[ "85 percent", "10 percent", "99 percent", "40 percent" ]	A
sciq-3078	multiple_choice	What occurs when the immune system is not working properly?	[ "allergy", "anemia", "immunodeficiency", "cancer" ]	C
sciq-5256	multiple_choice	Are vesicles larger or smaller than vacuoles?	[ "narrower", "larger", "smaller", "wider" ]	C
sciq-2080	multiple_choice	What is the smallest part of an element called?	[ "atom", "core", "nucleus", "neutron" ]	A
sciq-6974	multiple_choice	Different isotopes of an element have different mass numbers because they have different numbers of what?	[ "nuclei", "protons", "electrons", "neutrons" ]	D
sciq-619	multiple_choice	According to dalton's law, unless they chemically react with each other, individual gases in a mixture of gases do not affect each other’s what?	[ "mass", "density", "weight", "pressure" ]	D
sciq-5866	multiple_choice	Substances produced by a reaction are known as?	[ "products", "compounds", "minerals", "solutions" ]	A
sciq-1802	multiple_choice	What science is the study of matter and the changes it undergoes?	[ "chemistry", "geology", "biology", "astronomy" ]	A
sciq-5745	multiple_choice	What is necessary for growth and energy?	[ "warmth", "nutrients", "breeding", "determination" ]	B
sciq-6487	multiple_choice	Plants can absorb inorganic nutrients and water through their root system, and what gas from the environment?	[ "carbon dioxide", "nitrogen dioxide", "chemical dioxide", "hydrogen dioxide" ]	A
sciq-5938	multiple_choice	Unlike an adult sponge, what stage is motile due to cilia that propel it through water?	[ "parasite", "larva", "zygote", "pupa" ]	B
sciq-8465	multiple_choice	When the oval window vibrates, it causes what else to vibrate as well?	[ "the cochlea", "cilia", "hammer and anvil", "timpani" ]	A
sciq-669	multiple_choice	The science of analyzing tree rings is called what?	[ "dendrochronology", "conservation", "algorithms", "estradiol" ]	A
sciq-4310	multiple_choice	What kind of joints does the skull have that do not allow any movement?	[ "fixed joints", "fixed plates", "fixed cells", "fixed particles" ]	A
sciq-5127	multiple_choice	Pure substances have a constant composition and can only be changed through what?	[ "chemical reactions", "heating", "dissolution", "liquid reactions" ]	A
scienceQA-4887	multiple_choice	Which of the following organisms is the decomposer in this food web?	[ "sea cucumber", "kelp", "sea otter", "black rockfish" ]	A	Decomposers help break down dead organisms into simpler matter, such as nutrients. These nutrients can then help plants and other organisms grow. In a food web, there is an arrow pointing from another organism to a decomposer. There are no arrows pointing from a decomposer to another organism. The kelp has arrows pointing from it. So, the kelp is not a decomposer. The bat star does not have arrows pointing from it to other organisms. So, the bat star is a decomposer. The black rockfish has an arrow pointing from it. So, the black rockfish is not a decomposer. The sea otter has an arrow pointing from it. So, the sea otter is not a decomposer. The sea cucumber does not have arrows pointing from it to other organisms. So, the sea cucumber is a decomposer.
sciq-260	multiple_choice	Catabolic reactions break down large organic molecules into smaller molecules, releasing the energy contained in what?	[ "molecular bonds", "liquid bonds", "chemical bonds", "crystals bonds" ]	C
sciq-945	multiple_choice	When calculating impulse, consider the change in _______ of one of the objects in the collision?	[ "momentum", "sound", "potential energy", "velocity" ]	A
sciq-9890	multiple_choice	What do you call the daily changes in the level of ocean water?	[ "tides", "currents", "shores", "waves" ]	A
sciq-5382	multiple_choice	A period is a horizontal row of the what?	[ "species table", "phases table", "periodic table", "cycles table" ]	C
ai2_arc-455	multiple_choice	Fossils of the fern Glossopteris have been found in the continents of South America, Africa, Asia, and Antarctica. The seeds of this fern were too small to be dispersed by wind. Which is best indicated by the presence of Glossopteris fossils on these continents?	[ "Glossopteris was versatile enough to adapt to all climates.", "The landmasses were joined together in pre-historic times.", "Fossils were much better preserved in the southern continents.", "The northern climate regions were not suitable for plant growth." ]	B
sciq-3137	multiple_choice	Because atoms are always electrically neutral, for each added proton, one of what is also added?	[ "ion", "quark", "electron", "neutron" ]	C
sciq-9270	multiple_choice	The rate of evaporation depends only on the surface area of the liquid and is essentially constant. the rate of condensation depends on the number of molecules in the vapor phase and increases steadily until it equals the rate of this?	[ "evaporation", "accumulation", "condensation", "absorption" ]	A
ai2_arc-181	multiple_choice	Comparing the skeletons of which of the following fish would best show the evolution of a fish species?	[ "a male fish and a female fish that could produce offspring", "the same fish just before it received a cut and after it healed", "a fish that lived recently and a fish that lived a long time ago", "the same fish just after it hatched and when it was full-grown" ]	C
sciq-9578	multiple_choice	Synthetic and natural rubber, styrofoam and plastic are examples of organic what?	[ "polymers", "metals", "microbes", "solutions" ]	A
scienceQA-8326	multiple_choice	Select the living thing.	[ "pushpin", "stop sign", "boulder", "barnacle" ]	D	A pushpin is not a living thing. Pushpins do not have all of the traits of living things. They do not grow or respond to their environment. They do not need food or water. A boulder is not a living thing. Boulders do not have all of the traits of living things. They do not grow or respond to their environment. They do not need food or water. A stop sign is not a living thing. Stop signs do not have all of the traits of living things. They do not grow or respond to their environment. They do not need food or water. A barnacle is a living thing. Barnacles grow and respond to their environment. They need food and water. Barnacles are made up of many cells. Barnacles are animals. They are related to crabs and lobsters. Barnacles attach to rocks, boats, and other animals.

sciq-4113

multiple_choice

What is defined as force per unit area?

[ "energy", "resistance", "momentum", "pressure" ]

D

sciq-1747

multiple_choice

What is the name for a parasite that causes disease?

[ "microbes", "fungi", "enfluenza", "pathogen" ]

D

scienceQA-6792

multiple_choice

How long is a guitar?

[ "32 feet", "32 yards", "32 inches", "32 miles" ]

C

The best estimate for the length of a guitar is 32 inches. 32 feet, 32 yards, and 32 miles are all too long.

ai2_arc-1075

multiple_choice

Which of the following can be caused by weathering?

[ "cracks forming in a boulder", "rocks melting to form magma", "glaciers forming on a mountainside", "pebbles combining to form a large rock" ]

A

sciq-7080

multiple_choice

Which law refers to the electron charge remaining the same during transfer?

[ "law of change", "law of construct of charge", "law of conservation of speculation", "law of conservation of charge" ]

D

scienceQA-2767

multiple_choice

How long is a soccer field?

[ "110 kilometers", "110 meters", "110 centimeters", "110 millimeters" ]

B

The best estimate for the length of a soccer field is 110 meters. 110 millimeters and 110 centimeters are too short. 110 kilometers is too long.

sciq-5832

multiple_choice

The radiation exposure is determined by the number of what times the quality factor of the radiation?

[ "rads", "beacons", "units", "pounds" ]

A

sciq-2114

multiple_choice

What is formed when two dna strands link together in an antiparallel direction and are twisted?

[ "RNA", "anti-helix", "double helix", "guanine" ]

C

sciq-629

multiple_choice

As per hutton's unconformity, what happened to the intermediate layers of rock?

[ "they fused", "they expanded", "they metamorphized", "they eroded away" ]

D

sciq-907

multiple_choice

What is the germ for a group of atoms within a molecule that reacts similarly anywhere it appears in different compounds?

[ "atomic group", "molecular group", "functional group", "thermal group" ]

C

sciq-4698

multiple_choice

While populations with unlimited resources grow exponentially, the population of a species will level off when what limit of its environment is reached?

[ "niche", "carrying capacity", "reproduction", "extinction" ]

B

sciq-9681

multiple_choice

The liver has three main components: hepatocytes, bile canaliculi, and this?

[ "hepatic sinusoids", "blood sinusoids", "tissue sinusoids", "coronary sinusoids" ]

A

sciq-1841

multiple_choice

What is the term for the height of the wave?

[ "amplitude", "vibration", "frequency", "magnitude" ]

A

sciq-11580

multiple_choice

What term refers to the sequence of community and ecosystem changes after a disturbance?

[ "progressions", "ecological succession", "physiological succession", "disturbance succession" ]

B

sciq-11429

multiple_choice

By multiplying the force applied by the perpendicular component of the moment arm,what is determined?

[ "intensities", "radiation", "torques", "pressure" ]

C

sciq-9630

multiple_choice

Resonance has been used in what kind of human-made recreational objects since prehistoric times?

[ "toys", "musical instruments", "arrows", "paintbrushes" ]

B

sciq-5244

multiple_choice

What is the gel-like material between the cell membrane and the nucleus called?

[ "mucus", "vacuole", "cytoplasm", "ribosome" ]

C

sciq-4503

multiple_choice

The voltage is measured using a voltmeter, which measures which difference across two points?

[ "average difference", "Distance", "actual difference", "potential difference" ]

D

ai2_arc-257

multiple_choice

What do ice, a rock, and a piece of aluminum have in common?

[ "They are all solids.", "They are all liquids.", "They are all minerals.", "They are all elements." ]

A

ai2_arc-777

multiple_choice

A student freezes some orange juice. Which of the following statements best describes how the orange juice is different after it is frozen?

[ "It is a liquid.", "It weighs more.", "It stays in one shape.", "It takes up less space." ]

C

sciq-9724

multiple_choice

What term is used to describe a simple diagram that shows one way energy flows through an ecosystem?

[ "water cycle", "food pyramid", "food chain", "fuel chain" ]

C

sciq-1138

multiple_choice

What are the two main minerals found in ocean water?

[ "sodium, chloride", "quartz, carbon", "dioxide , chloride", "carbon , chloride" ]

A

sciq-3166

multiple_choice

Researchers have also used insect courtship to explore genetic variation underlying differences in what?

[ "instance", "behavior", "function", "reproduction" ]

B

sciq-424

multiple_choice

What kind of mountainous formation can often be found near trenches?

[ "caves", "volcanoes", "craters", "earthquakes" ]

B

sciq-8245

multiple_choice

What are ionic substances completely held together by?

[ "magnetic bonds", "ionic bonds", "thermal bonds", "localized bonds" ]

B

sciq-6190

multiple_choice

The period of life between the start of puberty and the beginning of adulthood is called?

[ "old age", "prenatal", "adolescence", "youth" ]

C

sciq-5309

multiple_choice

What does interspecific competition between species often lead to?

[ "immigration", "extinction", "symbiosis", "evolution" ]

B

scienceQA-11158

multiple_choice

Select the fish below.

[ "Nile crocodile", "painted stork", "cane toad", "seahorse" ]

D

A seahorse is a fish. It lives underwater. It has fins, not limbs. Seahorses live in shallow, warm water. They can use their tails to hold on to plants. A painted stork is a bird. It has feathers, two wings, and a beak. Storks wade in shallow water to look for food. Storks eat fish, insects, worms, and other small animals. A cane toad is an amphibian. It has moist skin and begins its life in water. Toads do not have teeth! They swallow their food whole. A Nile crocodile is a reptile. It has scaly, waterproof skin. Crocodiles hunt their prey in or near water.

sciq-2683

multiple_choice

What do you call the state in which a plant slows down cellular activities and may shed its leaves?

[ "germination", "recession", "hibernation", "dormancy" ]

D

sciq-4417

multiple_choice

What takes place directly after developing a hypothesis in the scientific method process?

[ "testing the hypothesis", "gathering materials", "independent variables", "making a conclusion" ]

A

ai2_arc-1019

multiple_choice

Which statement best describes a neutron?

[ "It has a negative charge.", "It moves around the nucleus.", "It adds mass to the nucleus.", "It has a positive charge." ]

C

sciq-10528

multiple_choice

Amniotes are animals that produce eggs with membranes possessing what property, which allowed them to lay eggs on land?

[ "waterproof", "absorbent", "hard", "heavy" ]

A

sciq-11045

multiple_choice

The two parathyroid glands are located behind what gland?

[ "hypothalmus", "thymus", "thyroid", "pituitary gland" ]

C

sciq-8651

multiple_choice

Catecholamines are a class of amine hormones synthesised form which amino acid?

[ "tyrosine", "phenylalanine", "dopamine", "epinephrine" ]

A

ai2_arc-86

multiple_choice

When a mirror is placed by a fish bowl with a beta fish swimming inside, the beta fish sees what appears to be another fish. This occurs because of

[ "absorption.", "refraction.", "reflection.", "diffraction." ]

C

sciq-9646

multiple_choice

The cytoskeleton crisscrosses the cytoplasm, this gives what to the cell?

[ "internal passageway", "external framework", "internal framework", "external passageway" ]

C

sciq-7078

multiple_choice

In what route do water and solutes move along the continuum of cytosol?

[ "symplastic", "hydrophylic", "nonvascular", "hydrophobic" ]

A

sciq-8756

multiple_choice

Elements are either metals, nonmetals, or what?

[ "partial metals", "unstable metals", "semimetals", "reactive metals" ]

C

sciq-3821

multiple_choice

What is a diagram that shows a single way that energy flows throughout an ecosystem?

[ "food chain", "dependent chain", "water cycle", "fuel chain" ]

A

sciq-2789

multiple_choice

What is the main organ required for respiration in mammals?

[ "the brain", "the heart", "the diaphragm", "the lungs" ]

D

sciq-3536

multiple_choice

The periodic table is an arrangement of the elements in order of increasing what?

[ "gravity numbers", "negative numbers", "metallic numbers", "atomic numbers" ]

D

sciq-7925

multiple_choice

What are long chains of amino acids?

[ "Fatty Acid Chains", "proteins", "cells", "lipids" ]

B

sciq-362

multiple_choice

Electrical potential energy can be described by the equation pe = qv, where q is the electric charge and v is what?

[ "wavelength density", "frequency", "amplitude", "voltage" ]

D

sciq-7032

multiple_choice

Silver and ordinary table salt are two examples of chemical what?

[ "microbes", "organism", "substances", "impurities" ]

C

sciq-9137

multiple_choice

When did new plants start sprouting after the forest fire?

[ "five months later", "two months later", "two weeks later", "two days later" ]

B

sciq-10059

multiple_choice

Hemolymph bathes organs directly in arthropods and most molluscs, due to an open type of what system?

[ "reproductive", "circulatory", "nervous", "pulmonary" ]

B

ai2_arc-324

multiple_choice

Bees can see wavelengths of only yellow, blue, and ultraviolet light. Many plant flowers consist of yellow, blue, and ultraviolet markings that are near the center of the flower. Which sentence describes which organisms benefit from this and explains why?

[ "Only plants benefit, because bees are unable to reach a food source on the plant.", "Only bees benefit, because flowers are damaged by bees.", "Neither bees nor plants benefit, because it does not help either to reproduce.", "Both bees and plants benefit, because bees find food and plants are aided in reproduction." ]

D

ai2_arc-814

multiple_choice

One astronomical unit is the average distance between the Earth and the Sun. This unit is most often used to describe the distance between which two objects?

[ "from galaxy to galaxy", "from Saturn to Mercury", "from the Sun to Proxima Centauri", "from the Big Dipper to the Little Dipper" ]

B

sciq-8768

multiple_choice

Hormones, ions, and neurotransmitters are all types of what?

[ "proteins", "nutrients", "pathogens", "chemical signals" ]

D

sciq-1201

multiple_choice

Most thoracic vertebrae have two facets that articulate with the head of what structure?

[ "calf", "pelvic", "rib", "heart" ]

C

sciq-2147

multiple_choice

What increases the size of a population's gene pool?

[ "mutations", "microbes", "mass extinction", "natural selection" ]

A

sciq-7637

multiple_choice

The radiocarpal and midcarpal joints are responsible for all movements of the hand and what other part of the body?

[ "shoulder", "fingers", "foot", "wrist" ]

D

ai2_arc-722

multiple_choice

When is wood a nonrenewable resource?

[ "When more trees are harvested than are replanted.", "When trees are harvested and replanted at the same rate.", "When trees are used as an energy resource.", "When trees are used as a material resource." ]

A

sciq-38

multiple_choice

Fungus-like protist saprobes play what role in a food chain and are specialized to absorb nutrients from nonliving organic matter, such as dead organisms or their wastes?

[ "Soil", "aphids", "decomposers", "fluxes" ]

C

sciq-1808

multiple_choice

What element has the atomic number 16?

[ "sulfur", "oxygen", "helium", "neon" ]

A

sciq-3261

multiple_choice

What type of cells in the body fluids and tissues of most animals specifically interact with and destroy pathogens?

[ "Dendritic cells", "Microglial cells", "immune cells", "White blood cells" ]

C

ai2_arc-293

multiple_choice

Oscar is investigating how many days it takes for a chick to hatch from an egg. Which number of eggs would give Oscar the most reliable results?

[ "1", "3", "5", "7" ]

D

sciq-11261

multiple_choice

The rate of the accumulation of neutral what serves as a type of population-based biological clock?

[ "prokaryotic", "enzymes", "eukaryotes", "polymorphisms" ]

D

sciq-5760

multiple_choice

What is the center of an earthquake called?

[ "the core", "the magnitude", "the impact", "the epicenter" ]

D

sciq-9682

multiple_choice

What bone is is one of a pair that together form the upper jaw, much of the hard palate, the medial floor of the orbit, and the lateral base of the nose?

[ "mandibular bone", "maxillary bone", "mastoid process", "nasal bone" ]

B

sciq-264

multiple_choice

What keeps the moon orbiting earth?

[ "axial tilt", "Coriolis effect", "gravity", "the Sun" ]

C

ai2_arc-1055

multiple_choice

A hard hat would be used to protect a student during which type of investigation?

[ "a field trip to a museum of geology", "a field investigation of rock layers in a hillside", "a laboratory demonstration on the hardness of minerals", "a laboratory investigation of the identification of fossils" ]

B

sciq-10504

multiple_choice

Inducible enzymes usually function in what type of pathways?

[ "catabolic", "enzymatic", "biogenic", "anabolic" ]

A

sciq-4104

multiple_choice

What is the name for something that consists of all the population in a given area together with the nonliving environment?

[ "totality", "ecosystem", "web", "habitat" ]

B

sciq-3519

multiple_choice

What is the percentage of earthquakes that take place within a plate, away from plate boundaries?

[ "6%", "4 %", "3 %", "5%" ]

D

sciq-7565

multiple_choice

Though often regarded as the supporting cast of the nervous system, glial cells in the brain actually outnumber what by a factor of ten?

[ "neurons", "muscles", "electrons", "blood cells" ]

A

sciq-11460

multiple_choice

What is a renewable resource that can take thousand of years to form?

[ "sunlight", "wind", "soil", "water" ]

C

sciq-10580

multiple_choice

Which gas is responsible for global warming?

[ "ozone", "oxygen", "carbon dioxide", "hydrocarbons" ]

C

ai2_arc-245

multiple_choice

You need to move products across the ocean from Boston to Europe. What are your choices?

[ "ship or airplane", "truck or ship", "truck or airplane", "tunnel or ship" ]

A

sciq-238

multiple_choice

What do living things need to survive?

[ "molecules", "oxygen", "nutrients", "heat" ]

C

sciq-10677

multiple_choice

The populations that live in the same area form this?

[ "a colony", "a biome", "a community", "a habitat" ]

C

sciq-191

multiple_choice

Habitat loss, introduced species, overharvesting, and global change are major threats to what?

[ "the earth's gravity", "biodiversity", "the sun", "transportation" ]

B

ai2_arc-617

multiple_choice

Charisma has a goldfish she keeps in a tank. She planted several underwater plants in the bottom of the tank. How are the goldfish and the plants in the tank similar?

[ "Both add oxygen to the water.", "Both perform photosynthesis.", "Both are made up of cells.", "Both eat food." ]

C

ai2_arc-945

multiple_choice

Stout beardfish live in the deep ocean. They live so far down that there is no light. Which characteristic would best help stout beardfish to survive in the dark?

[ "a mouth full of bristles", "a brightly colored body", "the ability to swim quickly", "two whiskers that locate food" ]

D

sciq-5495

multiple_choice

The ordovician-silurian extinction event is the first recorded mass extinction and the second largest. during this period, about what percent of marine species went extinct?

[ "85 percent", "10 percent", "99 percent", "40 percent" ]

A

sciq-3078

multiple_choice

What occurs when the immune system is not working properly?

[ "allergy", "anemia", "immunodeficiency", "cancer" ]

C

sciq-5256

multiple_choice

Are vesicles larger or smaller than vacuoles?

[ "narrower", "larger", "smaller", "wider" ]

C

sciq-2080

multiple_choice

What is the smallest part of an element called?

[ "atom", "core", "nucleus", "neutron" ]

A

sciq-6974

multiple_choice

Different isotopes of an element have different mass numbers because they have different numbers of what?

[ "nuclei", "protons", "electrons", "neutrons" ]

D

sciq-619

multiple_choice

According to dalton's law, unless they chemically react with each other, individual gases in a mixture of gases do not affect each other’s what?

[ "mass", "density", "weight", "pressure" ]

D

sciq-5866

multiple_choice

Substances produced by a reaction are known as?

[ "products", "compounds", "minerals", "solutions" ]

A

sciq-1802

multiple_choice

What science is the study of matter and the changes it undergoes?

[ "chemistry", "geology", "biology", "astronomy" ]

A

sciq-5745

multiple_choice

What is necessary for growth and energy?

[ "warmth", "nutrients", "breeding", "determination" ]

B

sciq-6487

multiple_choice

Plants can absorb inorganic nutrients and water through their root system, and what gas from the environment?

[ "carbon dioxide", "nitrogen dioxide", "chemical dioxide", "hydrogen dioxide" ]

A

sciq-5938

multiple_choice

Unlike an adult sponge, what stage is motile due to cilia that propel it through water?

[ "parasite", "larva", "zygote", "pupa" ]

B

sciq-8465

multiple_choice

When the oval window vibrates, it causes what else to vibrate as well?

[ "the cochlea", "cilia", "hammer and anvil", "timpani" ]

A

sciq-669

multiple_choice

The science of analyzing tree rings is called what?

[ "dendrochronology", "conservation", "algorithms", "estradiol" ]

A

sciq-4310

multiple_choice

What kind of joints does the skull have that do not allow any movement?

[ "fixed joints", "fixed plates", "fixed cells", "fixed particles" ]

A

sciq-5127

multiple_choice

Pure substances have a constant composition and can only be changed through what?

[ "chemical reactions", "heating", "dissolution", "liquid reactions" ]

A

scienceQA-4887

multiple_choice

Which of the following organisms is the decomposer in this food web?

[ "sea cucumber", "kelp", "sea otter", "black rockfish" ]

A

Decomposers help break down dead organisms into simpler matter, such as nutrients. These nutrients can then help plants and other organisms grow. In a food web, there is an arrow pointing from another organism to a decomposer. There are no arrows pointing from a decomposer to another organism. The kelp has arrows pointing from it. So, the kelp is not a decomposer. The bat star does not have arrows pointing from it to other organisms. So, the bat star is a decomposer. The black rockfish has an arrow pointing from it. So, the black rockfish is not a decomposer. The sea otter has an arrow pointing from it. So, the sea otter is not a decomposer. The sea cucumber does not have arrows pointing from it to other organisms. So, the sea cucumber is a decomposer.

sciq-260

multiple_choice

Catabolic reactions break down large organic molecules into smaller molecules, releasing the energy contained in what?

[ "molecular bonds", "liquid bonds", "chemical bonds", "crystals bonds" ]

C

sciq-945

multiple_choice

When calculating impulse, consider the change in _______ of one of the objects in the collision?

[ "momentum", "sound", "potential energy", "velocity" ]

A

sciq-9890

multiple_choice

What do you call the daily changes in the level of ocean water?

[ "tides", "currents", "shores", "waves" ]

A

sciq-5382

multiple_choice

A period is a horizontal row of the what?

[ "species table", "phases table", "periodic table", "cycles table" ]

C

ai2_arc-455

multiple_choice

Fossils of the fern Glossopteris have been found in the continents of South America, Africa, Asia, and Antarctica. The seeds of this fern were too small to be dispersed by wind. Which is best indicated by the presence of Glossopteris fossils on these continents?

[ "Glossopteris was versatile enough to adapt to all climates.", "The landmasses were joined together in pre-historic times.", "Fossils were much better preserved in the southern continents.", "The northern climate regions were not suitable for plant growth." ]

B

sciq-3137

multiple_choice

Because atoms are always electrically neutral, for each added proton, one of what is also added?

[ "ion", "quark", "electron", "neutron" ]

C

sciq-9270

multiple_choice

The rate of evaporation depends only on the surface area of the liquid and is essentially constant. the rate of condensation depends on the number of molecules in the vapor phase and increases steadily until it equals the rate of this?

[ "evaporation", "accumulation", "condensation", "absorption" ]

A

ai2_arc-181

multiple_choice

Comparing the skeletons of which of the following fish would best show the evolution of a fish species?

[ "a male fish and a female fish that could produce offspring", "the same fish just before it received a cut and after it healed", "a fish that lived recently and a fish that lived a long time ago", "the same fish just after it hatched and when it was full-grown" ]

C

sciq-9578

multiple_choice

Synthetic and natural rubber, styrofoam and plastic are examples of organic what?

[ "polymers", "metals", "microbes", "solutions" ]

A

scienceQA-8326

multiple_choice

Select the living thing.

[ "pushpin", "stop sign", "boulder", "barnacle" ]

D

A pushpin is not a living thing. Pushpins do not have all of the traits of living things. They do not grow or respond to their environment. They do not need food or water. A boulder is not a living thing. Boulders do not have all of the traits of living things. They do not grow or respond to their environment. They do not need food or water. A stop sign is not a living thing. Stop signs do not have all of the traits of living things. They do not grow or respond to their environment. They do not need food or water. A barnacle is a living thing. Barnacles grow and respond to their environment. They need food and water. Barnacles are made up of many cells. Barnacles are animals. They are related to crabs and lobsters. Barnacles attach to rocks, boats, and other animals.