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481 values
sciq-8884
multiple_choice
An isometric type of what occurs as the muscle produces tension without changing the angle of a skeletal joint?
[ "contraction", "extension", "acceleration", "compression" ]
A
sciq-9848
multiple_choice
What is located at about 80 degrees north latitude?
[ "the equator", "alaska", "india", "the north pole" ]
D
sciq-7774
multiple_choice
Gene expression and what else are usually considered the same molecular process?
[ "protein synthesis", "subtractive synthesis", "organism synthesis", "photosynthesis" ]
A
sciq-8581
multiple_choice
Chemical reactions that consume energy are called what?
[ "endothermic reactions", "inefficient reactions", "greedy reactions", "exothermic reactions" ]
A
ai2_arc-554
multiple_choice
What do the Milky Way Galaxy and other galaxies in the universe have in common?
[ "They are similar in shape.", "They rotate in the same direction.", "They contain the same number of stars.", "They have similar elements." ]
D
sciq-10765
multiple_choice
The nail bed is a specialized structure of the epidermis that is found at the tips of our what?
[ "fingers, nails, and scalp", "only fingers", "fingers and toes", "only nails" ]
C
sciq-8943
multiple_choice
In animal cells, what arises from the centrosomes and includes spindle microtubules and asters?
[ "ribosomes", "Golgi apparatus", "the spindle", "DNA helix" ]
C
sciq-7961
multiple_choice
What force occurs whenever two surfaces come into contact?
[ "vibration", "tension", "friction", "gravity" ]
C
sciq-10361
multiple_choice
In science, what do we call a mathematical relationship that exists between observations under a given set of conditions?
[ "fact", "law", "idea", "theory" ]
B
sciq-2476
multiple_choice
Temperature can be defined as the average of what type of energy of the molecules?
[ "kinetic", "potential", "optical", "magnetic" ]
A
sciq-4709
multiple_choice
What layer of skin is located right beneath the epidermis?
[ "cusps", "scars", "dermis", "humus" ]
C
scienceQA-6168
multiple_choice
Select the reptile below.
[ "elongated tortoise", "eagle ray", "porcupinefish", "fruit bat" ]
A
A porcupinefish is a fish. It lives underwater. It has fins, not limbs. Porcupinefish can puff up their bodies with air or water to scare off predators. A fruit bat is a mammal. It has hair and feeds its young milk. Fruit bats eat fruit and drink nectar from flowers. They have special teeth to help them bite through fruit skins. An eagle ray is a fish. It lives underwater. It has fins, not limbs. Rays have a different shape than many other fish. Rays are large and flat. They have wide, triangle-shaped fins that help them swim long distances. An elongated tortoise is a reptile. It has scaly, waterproof skin. A tortoise's shell protects it from predators. When a tortoise feels threatened, it can pull its head and legs inside its shell.
sciq-5484
multiple_choice
What do you call the strands of dna wrapped around proteins, which are located inside the nucleus?
[ "chromosomes", "fibrils", "receptors", "ribosomes" ]
A
sciq-11652
multiple_choice
Convex lenses are thicker in the middle than at the edges so they cause rays of light to converge, or meet, at a point called what?
[ "focus", "the center", "the apex", "the base" ]
A
sciq-5816
multiple_choice
Any place at which two bones are joined is called a what?
[ "modification", "constriction", "articulation", "expression" ]
C
sciq-4750
multiple_choice
What is an odorless white solid that is harmless unless consumed in large quantities?
[ "Hydrogen", "sodium chloride", "oxygen chloride", "carbon chloride" ]
B
sciq-118
multiple_choice
What is the lowest layer of the atmosphere?
[ "troposphere", "lithosphere", "chromosphere", "ionosphere" ]
A
sciq-3782
multiple_choice
What part of the rainforest commonly has ferns and other ground plants?
[ "understory", "canopy layer", "forest floor", "emergent layer" ]
A
scienceQA-4385
multiple_choice
How long is a garden snail?
[ "43 kilometers", "43 millimeters", "43 centimeters", "43 meters" ]
B
The best estimate for the length of a garden snail is 43 millimeters. 43 centimeters, 43 meters, and 43 kilometers are all too long.
sciq-134
multiple_choice
Collagen fibers, elastic fibers, and reticular fibers comprise what type of tissue?
[ "nucleus tissue", "intestine tissue", "connective tissue", "skin tissue" ]
C
sciq-5966
multiple_choice
What are the egg shaped organs on either side of the uterus?
[ "lungs", "ovaries", "testes", "kidneys" ]
B
sciq-1079
multiple_choice
What do vertebrates possess that is made up of repeating bony units?
[ "notochord", "skull", "spinal cord", "vertebral column" ]
D
sciq-9794
multiple_choice
When do homologous chromosomes form pairs?
[ "mitosis", "metathesis", "meiosis", "transcripton" ]
C
sciq-10583
multiple_choice
Solids and liquids are phases of matter that have their own unique what?
[ "volumes", "masses", "properties", "temperatures" ]
C
sciq-3647
multiple_choice
Macrophages, which can swallow and destroy old and dying cells, bacteria, or viruses, are large types of what cells?
[ "dendritic cells", "white blood cells", "white brain cells", "red blood cells" ]
B
sciq-510
multiple_choice
Modern members of what broad animal group live in many different habitats and are found on every continent except antarctica?
[ "arachnids", "amphibians", "parasites", "reptiles" ]
D
sciq-8539
multiple_choice
What properties describe the existence of matter, as opposed to chemical properties that describe how substances change into other substances?
[ "physical", "astronomical", "gravitational", "biological" ]
A
sciq-9044
multiple_choice
In a scientific experiment, the variable that is affected by the other one is called what?
[ "effective variable", "independent variable", "essential variable", "dependent variable" ]
D
sciq-1947
multiple_choice
What line of latitude is an equal distance from both the north and south poles?
[ "mid-part", "meridian", "divider", "equator" ]
D
sciq-11130
multiple_choice
What type of barrier physically blocks pathogens from entering the body?
[ "potential", "Solid", "molecular", "mechanical" ]
D
sciq-4797
multiple_choice
What heisenberg principle imposes ultimate limits on what is knowable in science?
[ "impossibility principle", "vacuum principle", "certainty principle", "uncertainty principle" ]
D
sciq-10938
multiple_choice
Diet correlates with the length of what organ system in vertebrates?
[ "respiratory", "reproductive", "circulatory", "digestive" ]
D
sciq-2497
multiple_choice
All cells need what for processes like active transport?
[ "oxygen", "sunlight", "energy", "hydrogen" ]
C
sciq-2019
multiple_choice
Gene expression is regulated primarily at the what level?
[ "transcriptional", "binding", "translational", "manufacturing" ]
A
sciq-3849
multiple_choice
What happens to the crust if the moving oceanic crust reaches a deep sea trench?
[ "forms a continent", "ocean volcano", "sinks into mantle", "it cleaves" ]
C
ai2_arc-52
multiple_choice
A student accidentally drops a test tube that breaks when it hits the floor. Which method is the best way to retrieve the broken glass?
[ "pick up the pieces with a paper towel", "use a chemical spill kit", "use a dustpan and broom", "pick up the pieces by hand" ]
C
scienceQA-3258
multiple_choice
How long is a spider's leg?
[ "16 millimeters", "16 kilometers", "16 meters", "16 centimeters" ]
A
The best estimate for the length of a spider's leg is 16 millimeters. 16 centimeters, 16 meters, and 16 kilometers are all too long.
sciq-6986
multiple_choice
Living in a large colony requires good communication. ants communicate with chemicals called what?
[ "peptides", "pheromones", "hormones", "alkalides" ]
B
sciq-8007
multiple_choice
What is categorized by the forces holding the individual atoms, ions, or molecules together?
[ "solids", "oils", "liquids", "gases" ]
A
sciq-6258
multiple_choice
What oily substance prevents the hair and skin of living things from drying out?
[ "pus", "progesterone", "pancreatic enzymes", "sebum" ]
D
sciq-3884
multiple_choice
What is the measure of kinetic energy of the particles in matter?
[ "energy", "friction", "precipitation", "temperature" ]
D
sciq-10126
multiple_choice
This bodily defense function attacks pathogens and includes inflammatory response and phagocytosis?
[ "third line of defense", "vomitting", "first line of defense", "second line of defense" ]
D
scienceQA-6518
multiple_choice
Select the solid.
[ "fruit punch", "pipe cleaner", "coffee", "caramel sauce" ]
B
Coffee is a liquid. A liquid takes the shape of any container it is in. If you pour coffee into a different container, the coffee will take the shape of that container. But the coffee will still take up the same amount of space. Caramel sauce is a liquid. A liquid takes the shape of any container it is in. If you pour caramel sauce into a container, the caramel sauce will take the shape of that container. But the caramel sauce will still take up the same amount of space. A pipe cleaner is a solid. You can easily bend a pipe cleaner. But it will still have a size and shape of its own. Fruit punch is a liquid. A liquid takes the shape of any container it is in. If you pour fruit punch into a cup, the punch will take the shape of the cup. But the punch will still take up the same amount of space.
sciq-1456
multiple_choice
A microscope can be made from two of what kind of lenses?
[ "angular", "convex", "outer", "inner" ]
B
sciq-5567
multiple_choice
What kind of energy is specifically defined as the energy that is available to do work?
[ "old", "used", "free", "new" ]
C
sciq-10188
multiple_choice
Elements with magic numbers of what tend to have more stable isotopes?
[ "molecules", "pressure", "protons", "nucleus" ]
C
sciq-4287
multiple_choice
How many valence electrons can be found in a carbon atom?
[ "five", "One", "four", "three" ]
C
sciq-9331
multiple_choice
What measures exactly how much gravity is pulling on something?
[ "weight", "matter", "size", "dimension" ]
A
sciq-8746
multiple_choice
During fetal development of the heart, what does the bulbus cordis develop into?
[ "right ventricle", "left atrium", "last ventricle", "right atrium" ]
A
sciq-9040
multiple_choice
Elements are defined by their atomic number, a number that describes the amount of what in the element?
[ "neutrons", "bonds", "electrons", "protons" ]
D
sciq-9100
multiple_choice
What term is used to describe is the increased or decreased speed of movement of an organism in response to a stimulus?
[ "telekinesis", "brownian motion", "orthokinesis", "klinokinesis" ]
C
sciq-9024
multiple_choice
Conductive losses in the middle ear can be partially overcome by sending sound vibrations to what structure through the skull, the principle behind implants for hearing loss patients?
[ "cornea", "tympanic membrane", "hammer and anvil", "cochlea" ]
D
sciq-3822
multiple_choice
Different colors of light differ in terms of which important attribute?
[ "lenses", "wavelengths", "prisms", "frequencies" ]
B
sciq-2901
multiple_choice
All living organisms are classified into one of six broad categories called what?
[ "nobles", "cities", "kingdoms", "tribes" ]
C
sciq-3903
multiple_choice
A goiter is a visible indication of deficiency of what?
[ "iodine", "water", "arsenic", "chlorine" ]
A
sciq-9898
multiple_choice
Chloroplasts, chromoplasts, and leucoplasts are all plastids, organelles found in what kind of cells?
[ "plant cells", "heart cells", "animal cells", "lung cells" ]
A
sciq-2859
multiple_choice
What can destroy living cells, produce mutations and cause cancer?
[ "stingrays", "prismatic rays", "plasma rays", "gamma rays" ]
D
sciq-6868
multiple_choice
Which single most factor is responsible for the extinction of hundreds of species of birds?
[ "diet", "habitat", "human actions", "animal actions" ]
C
sciq-6685
multiple_choice
When the wind deposits sand, it forms small hills, what are these hills called?
[ "sand dunes", "sand tunnels", "snow banks", "mud puddles" ]
A
sciq-5844
multiple_choice
What does the urea cycle process?
[ "oxygen", "calcium", "nitrogen", "urine" ]
C
sciq-414
multiple_choice
Ice masses, acquifers, and the deep ocean are examples of water what?
[ "seas", "reservoirs", "lakes", "fields" ]
B
sciq-3135
multiple_choice
One type of tissue, called brown fat, is made up of cells packed full of what?
[ "chromosomes", "Atoms", "mitochondria", "proteins" ]
C
sciq-9008
multiple_choice
Sympatric type of what occurs when a single population of organisms splits into two reproductively isolated communities within the same physical region?
[ "biodiversity", "extraction", "speciation", "accumulation" ]
C
sciq-125
multiple_choice
Red litmus paper turns what color when placed in a basic solution?
[ "pink", "blue", "white", "orange" ]
B
sciq-7618
multiple_choice
The first living cells may have evolved around how long ago?
[ "900,000 years", "2.2 billion years", "4 billion years", "6 billion years" ]
C
sciq-10610
multiple_choice
What occurs when so much water enters a stream or river that it overflows its banks or when deep snow melts very quickly in spring?
[ "avalanche", "drought", "flooding", "storm" ]
C
sciq-4588
multiple_choice
What are sudden and dramatic losses of biodiversity called?
[ "mass extinction", "normal extinction", "life extinction", "explosive extinction" ]
A
sciq-3844
multiple_choice
How many major massive extinctions have been since life began on earth?
[ "five", "four", "one", "three" ]
A
ai2_arc-345
multiple_choice
Gavin has two rocks. Both rocks are made up entirely of the same mineral. What other property of his two rocks is most likely to be the same?
[ "size", "shape", "color", "weight" ]
C
sciq-1954
multiple_choice
What is the fan-like superior region that forms the largest part of the hip bone and is united to the sacrum at the largely immobile sacroiliac joint?
[ "spine", "pica", "septum", "ilium" ]
D
sciq-3683
multiple_choice
Chemical reactions always involve energy. when methane burns, for example, it releases energy in the form of what?
[ "light and sound", "heat and light", "movement and light", "heat and movement" ]
B
sciq-857
multiple_choice
Atmospheric pressure is low in what anatomically named part of a hurricane?
[ "eye", "leg", "nose", "mouth" ]
A
sciq-8914
multiple_choice
Conversely, very large forces are created by liquids and solids when they try to expand but are constrained from doing so—which is equivalent to compressing them to less than their normal volume. this often occurs when a contained material warms up, since most materials expand when they do this?
[ "decrease temperature", "increase temperature", "increase mass", "increase density" ]
B
sciq-10934
multiple_choice
The formula mass of a covalent compound is also called the what?
[ "ionic mass", "atomic mass", "molecular mass", "nucleus mass" ]
C
sciq-5044
multiple_choice
What is the major source of water vapor in the atmosphere?
[ "sea", "streams", "ocean", "drift" ]
C
sciq-5129
multiple_choice
In order to determine its molecular formula, it is necessary to know what about the compound?
[ "protons mass", "polar mass", "lipid mass", "molar mass" ]
D
scienceQA-1408
multiple_choice
Select the living thing.
[ "sea star", "backpack", "the Statue of Liberty", "iceberg" ]
A
A backpack is not a living thing. Backpacks 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 sea star is a living thing. Sea stars grow and respond to their environment. They need food and water. Sea stars are made up of many cells. Sea stars are animals. They can use their arms to walk on the ocean floor. An iceberg is not a living thing. An iceberg does not have all the traits of a living thing. It may grow or melt in response to the world around it, but it does not need food. The Statue of Liberty is not a living thing. The Statue of Liberty is shaped like a person. But it does not have all the traits of a living thing. It does not grow or respond to the world around it. It does not need food or water.
sciq-6692
multiple_choice
What type of tissue is blood?
[ "connective", "epithelial", "nervous", "muscular" ]
A
sciq-476
multiple_choice
Sexually reproducing organisms alternate between which stages?
[ "binary and diploid", "haploid and diploid", "binary and haploid", "diploid and traploid" ]
B
sciq-5633
multiple_choice
What is the term for a structure composed of more than one type of tissue?
[ "system", "marrow", "cortex", "organ" ]
D
sciq-9885
multiple_choice
What are hot fragments of rock called?
[ "obsidian", "pyroclasts", "shards", "magma" ]
B
sciq-11026
multiple_choice
What are groups of atoms that behave as a single unit called?
[ "protons", "ions", "particles", "molecules" ]
D
sciq-705
multiple_choice
What is the name of the portion of a nucleotide lacking phosphate groups?
[ "a nucleoside", "nucleolus", "nuclear shell", "a nucleobase" ]
A
sciq-4596
multiple_choice
What is the term used to describe the liquid that moves through the vessels and includes plasma and the cells and sell fragments called platelets?
[ "blood", "bacteria", "pus", "water" ]
A
sciq-3076
multiple_choice
What type of resource cannot be replaced as easily as it is consumed?
[ "nonrenewable", "biological", "untapped", "renewable" ]
A
scienceQA-2558
multiple_choice
How long is a seesaw?
[ "4 yards", "4 feet", "4 miles", "4 inches" ]
A
The best estimate for the length of a seesaw is 4 yards. 4 inches and 4 feet are too short. 4 miles is too long.
sciq-4484
multiple_choice
Oil is found in the porous rock layer and trapped by the what?
[ "mantle", "\\", "impermeable layer", "crystalline layer" ]
C
sciq-1568
multiple_choice
Where is chemical energy stored?
[ "ribosomes", "atom bonds", "cell wall", "nucleus" ]
B
sciq-1840
multiple_choice
The process in which a sperm unites with an egg is called?
[ "fertilization", "infection", "migration", "absorption" ]
A
sciq-8607
multiple_choice
Internal functions are coordinated and regulated so that the internal environment of a living thing is relatively constant, referred to as what?
[ "homeostasis", "homogenesis", "hypothesis", "stabilizer" ]
A
sciq-10683
multiple_choice
What are flightless birds that are strong swimmers and spend much of their time in the water?
[ "Emus", "penguins", "Ostriches", "Cassowaries" ]
B
sciq-1096
multiple_choice
The effects of which kind of selection are larger than the effects of direct natural selection on individuals?
[ "unnatural selection", "kin selection", "topical selection", "stranger selection" ]
B
sciq-5292
multiple_choice
What type of disturbance do even dominant plants depend on in many biomes?
[ "periodic", "radiation", "mass extinction", "seismic force" ]
A
sciq-5819
multiple_choice
What kind of membrane do prokaryotic cells have?
[ "plasma membrane", "cell wall", "cellulose", "plasma wall" ]
A
sciq-10165
multiple_choice
What provides a protective covering for the body and helps maintain homeostasis?
[ "endorcrine system", "integumentary system", "lysogenic system", "unadorned system" ]
B
sciq-8634
multiple_choice
What do you call a unique substance formed when two or more elements combine chemically?
[ "mixture", "compound", "component", "solution" ]
B
sciq-3640
multiple_choice
Oceans help control global warming by absorbing what?
[ "carbon dioxide", "ozone", "methane", "hydrogen" ]
A
sciq-2853
multiple_choice
What term means controlling body temperature within a narrow range from the inside through biochemical or physical means?
[ "regulation", "evaporation", "endothermy", "exothermy" ]
C
sciq-6944
multiple_choice
What property increases as an object's mass increases, making a full box harder to push than an empty one?
[ "gravity", "inertia", "magnetism", "weight" ]
B
sciq-6807
multiple_choice
What do loess deposits form?
[ "diagonal cliffs", "rotational cliffs", "horizontal cliffs", "vertical cliffs" ]
D