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481 values
sciq-7337
multiple_choice
What type of organisms do not need blood?
[ "marine", "vertebrate", "cold-blooded", "single-celled" ]
D
sciq-6163
multiple_choice
What term is used to describe the ability of matter to burn?
[ "flammability", "volatility", "permeability", "reactivity" ]
A
sciq-10537
multiple_choice
What is the term for seed plants?
[ "proteins", "spermatophytes", "sporozoans", "germospores" ]
B
sciq-4444
multiple_choice
Through a process called electromagnetic induction, generators change what energy form of a spinning turbine to electrical energy?
[ "electric", "kinetic", "potential", "seismic" ]
B
sciq-8924
multiple_choice
Amides are carbonyls attached to one nitrogen atom and one carbon or which other atom?
[ "helium", "calcium", "nitrogen", "hydrogen" ]
D
sciq-9058
multiple_choice
There are two basic body plans in cnidarians which are called the polyp and what else?
[ "stoma", "medusa", "hydra", "spore" ]
B
sciq-6456
multiple_choice
The vagina connects to which internal organ?
[ "uterus", "ovaries", "artery", "valves" ]
A
sciq-7070
multiple_choice
On the origin of species is a book by darwin that spells out what theory?
[ "theory of the computation", "theory of the universe", "theory of evolution", "theory of reproduction" ]
C
sciq-6662
multiple_choice
Which ductless gland releases secretions directly into surrounding tissues and fluids?
[ "marrow gland", "pineal gland", "adrenal glands", "endocrine gland" ]
D
sciq-7776
multiple_choice
What paired organs together receive about 25 percent of cardiac output and are protected in the retroperitoneal space by the renal fat pad and overlying ribs and muscle?
[ "kidneys", "hands", "lungs", "brain" ]
A
sciq-896
multiple_choice
How do most fish reproduce with one another?
[ "on land", "asexually", "same sex", "sexually" ]
D
sciq-7229
multiple_choice
What umbrella term describes small structures that exist within cells and perform specialized functions?
[ "atoms", "organisms", "organelles", "macromolecules" ]
C
sciq-9649
multiple_choice
Angiosperms possess reproductive structures that attract animals that perform what role?
[ "evolution", "vegetation", "pollination", "isolation" ]
C
sciq-10654
multiple_choice
What is the term for crops that are genetically modified with new genes that code for traits useful to humans?
[ "carcinogenic", "transgenic", "mutant", "embryonic" ]
B
sciq-3934
multiple_choice
Lava flows from a volcano and hardens into what?
[ "rock", "sand", "snow", "life" ]
A
sciq-8450
multiple_choice
What do ferns use in place of seeds to reproduce?
[ "toxins", "spores", "glands", "atoms" ]
B
sciq-2908
multiple_choice
What type of minerals are often found where seas once covered the land?
[ "crystals", "carbonate", "magnesium", "sea salt" ]
B
sciq-4387
multiple_choice
The superior nasal concha and middle nasal concha are parts of which bone?
[ "gastrulation bone", "nostril bone", "ethmoid bone", "nasal bone" ]
C
sciq-9884
multiple_choice
Why do effusive eruptions rarely kill anyone?
[ "They are low temperature", "They are minor", "They occur rarely", "they move slowly" ]
D
sciq-220
multiple_choice
What does the driving of turbines by the heating of water to steam accomplish?
[ "depletion of electricity", "absorption of electricity", "generation of electricity", "diffusion of electricity" ]
C
sciq-9508
multiple_choice
Researchers have long based their hypotheses about animal phylogeny on what?
[ "longitudinal data", "manipulative data", "morphological data", "distinctive data" ]
C
sciq-8488
multiple_choice
Proteins are one of four classes of what type of compounds?
[ "biochemical", "synthesized", "hormonal", "genetic" ]
A
sciq-9727
multiple_choice
Animals produce most of what chemicals, which are needed to synthesize the fatty acids they need?
[ "enzymes", "carbohydrates", "solvents", "hormones" ]
A
sciq-7737
multiple_choice
What are the earliest and simplest vertebrates?
[ "whales", "bears", "birds", "fish" ]
D
sciq-5635
multiple_choice
What part of a bird is adapted for the food it eats?
[ "beak", "head", "teeth", "eye" ]
A
ai2_arc-22
multiple_choice
The composition of soil influences the soil's ability to retain and transmit water and air. What soil type would be best for planting a productive garden?
[ "Sandy soils because they provide high silica content.", "Loamy soils because they contain sand and clay.", "Slightly rocky soils because they provide needed minerals.", "Clay soils because they are heavy soils and retain water." ]
B
sciq-8389
multiple_choice
In naming ternary compounds, which type of particle is stated first?
[ "cation", "molecule", "anion", "subatomic" ]
A
sciq-44
multiple_choice
Gases are most ideal at high temperature and what pressure?
[ "high", "absolute", "low", "stable" ]
C
sciq-8800
multiple_choice
The amniotes are distinguished from amphibians by the presence of a terrestrially adapted egg protected by what?
[ "albumen", "hard shell", "amniotic membranes", "yolk" ]
C
sciq-6130
multiple_choice
What are the two types of vascular tissues?
[ "ganglia and phloem", "epidermis and phloem", "ectoderm and phloem", "xylem and phloem" ]
D
sciq-1846
multiple_choice
What system protects the soft organs of the body?
[ "nervous system", "skeletal system", "Cardiovascular system", "digestive system" ]
B
sciq-6460
multiple_choice
Thermal, radiant, electrical, nuclear, and chemical are all types of what?
[ "heating", "energy", "fuel", "fuel" ]
B
sciq-5351
multiple_choice
The capsid is made from the what that are encoded by viral genes within their genome?
[ "proteins", "acids", "lipids", "hormones" ]
A
ai2_arc-527
multiple_choice
Many fertilizers contain organic materials that are helpful to an orchard but have a different effect when rain causes them to run off into a freshwater ecosystem. How does the addition of organic waste from fertilizers most commonly affect freshwater ecosystems?
[ "increasing biodiversity", "increasing water clarity", "decreasing algae blooms", "decreasing oxygen levels" ]
D
sciq-3785
multiple_choice
How many quarks are in each proton and neutron?
[ "five", "ten", "four", "three" ]
D
sciq-6566
multiple_choice
Plants are described by what term, meaning their cells have a nucleus and membrane-bound organelles?
[ "complex", "walled", "eukaryotic", "prokaryotic" ]
C
sciq-3856
multiple_choice
The term salt can refer to essentially any of what compounds?
[ "metallic", "ionic", "solvent", "absorption" ]
B
sciq-10333
multiple_choice
If no unbalanced force acts on an object the object remains at constant velocity or what?
[ "constant movement", "constant", "at rest", "rotating" ]
C
sciq-9529
multiple_choice
What is the reaction called when an acid and a base react?
[ "activation", "decomposition", "oxidation", "neutralization" ]
D
sciq-3855
multiple_choice
What hypothetical link between development of herbivores and plant defenses is observed in nature, for instance in seeds that are unsavory to animals?
[ "natural selection", "abjection", "coevolution", "interconnection" ]
C
sciq-3256
multiple_choice
Cellular respiration that proceeds in the presence of oxygen is known as what?
[ "aerobic respiration", "anaerobic respiration", "digestive respiration", "kinetic respiration" ]
A
sciq-4344
multiple_choice
What are drilled to monitor groundwater pollution?
[ "sewers", "test wells", "draining wells", "aquifers" ]
B
sciq-4594
multiple_choice
Where does growth in length occur, above the root cap?
[ "primary tuber", "apical meristem", "primary meristem", "vascular cambrium" ]
C
sciq-4400
multiple_choice
What is the term for a mutually beneficial relationship in which one organism lives inside the other?
[ "parasite", "parthenogenesis", "symbiosis", "endosymbiosis" ]
D
scienceQA-12563
multiple_choice
What do these two changes have in common? bending a paper clip mixing sand and water
[ "Both are chemical changes.", "Both are caused by cooling.", "Both are caused by heating.", "Both are only physical changes." ]
D
Step 1: Think about each change. Bending a paper clip is a physical change. After you bend it, the paper clip has a different shape. But it is still made of the same type of matter. Mixing sand and water is a physical change. Adding water makes the sand wet. But both the sand and water are still made of the same type of matter as before. Step 2: Look at each answer choice. Both are only physical changes. Both changes are physical changes. No new matter is created. Both are chemical changes. Both changes are physical changes. They are not chemical changes. Both are caused by heating. Neither change is caused by heating. Both are caused by cooling. Neither change is caused by cooling.
sciq-1256
multiple_choice
What molecules are usually insoluble in water?
[ "ions", "non-polar", "polar", "acids" ]
B
sciq-5524
multiple_choice
Two species that share what cannot coexist in a community?
[ "color", "language", "same niche", "mood" ]
C
sciq-1160
multiple_choice
A light bulb converts electrical energy to light and what?
[ "thermal energy", "visible energy", "kinetic energy", "chemical energy" ]
A
sciq-7362
multiple_choice
Reproduction in prokaryotic cells is by what process of growth, enlargement and division?
[ "mitosis", "budding", "binary fission", "photosynthesis" ]
C
sciq-6475
multiple_choice
Getting the same result when an experiment is repeated is called what?
[ "mutation", "repetition", "initiation", "replication" ]
D
sciq-3733
multiple_choice
Community interactions are important factors in what?
[ "natural process", "natural resources", "natural selection", "natural change" ]
C
sciq-3651
multiple_choice
The hepatitis virus attacks only cells of what organ?
[ "liver", "brain", "kidney", "lungs" ]
A
sciq-781
multiple_choice
What state occurs when the amount of solute dissolved exceeds the solubility?
[ "polymerisation", "alkalinity", "supersaturation", "density" ]
C
ai2_arc-817
multiple_choice
Researchers recently discovered a gene in humans that previously was unknown to science. Which statement best explains why the gene probably was not discovered much sooner?
[ "The gene only recently evolved in humans.", "The technology used to study genes is still being developed.", "Scientists were not interested in genes until a few years ago.", "Scientists were sure they had already discovered every possible gene." ]
B
sciq-1868
multiple_choice
What kind of reproduction results in offspring that are generally all genetically different?
[ "sexual", "individual", "perceptual", "asexual" ]
A
sciq-8273
multiple_choice
Light is produced when charged particles do what, frequently in the form of oscillating?
[ "increase", "accelerate", "decelerate", "offset" ]
B
sciq-1212
multiple_choice
Why is blue cheese blue?
[ "artificial dye", "bacteria", "fungus", "fermentation" ]
C
sciq-9299
multiple_choice
Which protein, that stores oxygen in muscle cells, has been purified from a number of organisms?
[ "iodine", "melanin", "potassium", "myoglobin" ]
D
sciq-1907
multiple_choice
Duckweed and cattails serve what role in the food chain in freshwater biomes?
[ "primary producer", "secondary consumer", "primary consumer", "tertiary consumer" ]
A
ai2_arc-920
multiple_choice
Which fact is a benefit of airplanes?
[ "Airplanes are hard to fly.", "Airplanes cost a lot of money.", "Airplanes can travel very quickly.", "Airplanes take off from the airport." ]
C
sciq-2936
multiple_choice
Loss of energy is the reason that what typically has few levels?
[ "food chain", "the atmosphere", "humans", "video games" ]
A
sciq-11114
multiple_choice
What type of invertebrates are jellyfish and corals known as?
[ "cnidarians", "sponges", "cephalopods", "nautilus" ]
A
sciq-3117
multiple_choice
What secures teeth in the mouth?
[ "socket", "plug", "muscles", "cartilage" ]
A
ai2_arc-501
multiple_choice
During sexual reproduction, a sperm cell fertilizes an egg cell to form a fertilized egg. The fertilized egg then develops into a new organism. Which statement describes the primary advantage of sexual reproduction over asexual reproduction?
[ "Sexual reproduction produces identical offspring.", "Sexual reproduction results in less adaptable offspring.", "Sexual reproduction generates a large number of offspring.", "Sexual reproduction results in genetic variation in offspring." ]
D
sciq-2072
multiple_choice
What do you call taxes placed on products that produce carbon dioxide?
[ "chemical tax", "emission tax", "pollution tax", "carbon taxes" ]
D
sciq-5408
multiple_choice
Atmospheric pressure can be measured with what tool?
[ "ruler", "barometer", "scale", "thermometer" ]
B
sciq-1354
multiple_choice
When an oxidation number of an atom is decreased in the course of a redox reaction, that atom is being what?
[ "increased", "reduced", "destroyed", "replaced" ]
B
sciq-6373
multiple_choice
What is a fluid-filled body cavity that is completely enclosed by mesoderm called?
[ "choroid", "coelom", "hymenium", "pseudocoelom" ]
B
sciq-6634
multiple_choice
What measures the amount of matter in an object?
[ "concentrations", "mass", "weight", "amounts" ]
B
sciq-8748
multiple_choice
What causes earthquakes at mid-ocean ridges to be small and shallow?
[ "plates are thick , young , and cold", "plates are thin , young , and cold", "plates are thick , old , and hot", "plates are thin , young , and hot" ]
D
sciq-7514
multiple_choice
What do you call a close relationship between two species that benefits both?
[ "symbiotic relationship", "commensalism", "parasitic relationship", "primordial relationship" ]
A
sciq-5737
multiple_choice
What is the term for force that opposes motion between any touching surfaces?
[ "stress", "gravity", "tension", "friction" ]
D
sciq-4695
multiple_choice
What kind of current flows in just one direction?
[ "physical current", "slow current", "Alternating current", "direct current" ]
D
sciq-3914
multiple_choice
The fuel rods are made of a corrosion-resistant alloy that encases the partially enriched uranium fuel; controlled fission of 235u in the fuel produces heat. water surrounds the fuel rods and moderates this?
[ "half-life", "kinetic energy", "thermal energy", "electromagnetism" ]
B
sciq-8219
multiple_choice
Alkenes with the same atoms but different shapes are called what?
[ "monomers", "alcohols", "isotopes", "isomers" ]
D
scienceQA-1032
multiple_choice
Which of the following organisms is the decomposer in this food web?
[ "gray fox", "black bear", "swallowtail caterpillar", "bolete fungus" ]
D
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 black bear has an arrow pointing from it. So, the black bear is not a decomposer. The bolete fungus does not have arrows pointing from it to other organisms. So, the bolete fungus is a decomposer. The parasol fungus does not have arrows pointing from it to other organisms. So, the parasol fungus is a decomposer. The swallowtail caterpillar has arrows pointing from it. So, the swallowtail caterpillar is not a decomposer. The gray fox has arrows pointing from it. So, the gray fox is not a decomposer.
sciq-11477
multiple_choice
If pressure is exerted on the rock from one direction, the rock forms layers. this is called what?
[ "stratification", "protonation", "sedimentation", "foliation" ]
D
sciq-2657
multiple_choice
Gravitational force on a large scale dominates interactions between large objects because it is always what?
[ "vulnerable", "suitable", "attractive", "ugly" ]
C
sciq-9990
multiple_choice
Cold fronts in winter may bring what type of storm?
[ "typhoon", "showers", "monsoon", "snow storm" ]
D
sciq-1661
multiple_choice
What do some plants produce that protects dormant seeds and aids in their dispersal?
[ "fruit", "stems", "roots", "leaves" ]
A
ai2_arc-551
multiple_choice
Water used in a factory is heated to 75 degrees Celsius. It is discharged into a nearby river that has a normal temperature of 20 degrees Celsius. Which should most likely be done to minimize damage to the river?
[ "decrease the temperature of the factory water", "increase the temperature of the river water", "remove the vegetation from the river", "add more fish to the river" ]
A
sciq-8741
multiple_choice
Polymers, ceramics, adhesives, coatings, and liquid crystals are examples of materials recently discovered or developed by what type of scientists?
[ "material scientists", "chemists", "engineers", "geologists" ]
B
scienceQA-2195
multiple_choice
What do these two changes have in common? a log decomposing in the woods an old sandwich rotting in a trashcan
[ "Both are caused by heating.", "Both are only physical changes.", "Both are chemical changes.", "Both are caused by cooling." ]
C
Step 1: Think about each change. The breakdown of plant and animal matter by organisms such as fungi and earthworms is called decomposition. A log decomposing in the woods is a chemical change. As the log breaks down, the type of matter in it changes. Over time, the log becomes softer and has a different smell. A sandwich rotting is a chemical change. The matter in the sandwich breaks down and slowly turns into a different type of matter. Step 2: Look at each answer choice. Both are only physical changes. Both changes are chemical changes. They are not physical changes. Both are chemical changes. Both changes are chemical changes. The type of matter before and after each change is different. Both are caused by heating. Neither change is caused by heating. Both are caused by cooling. Neither change is caused by cooling.
sciq-5588
multiple_choice
The process when heat is released is referred to as what?
[ "insular", "exothermic", "geothermal", "endothermic" ]
B
sciq-9514
multiple_choice
Physical science can be defined as the study of matter and what?
[ "natural forces", "time", "energy", "space" ]
C
sciq-962
multiple_choice
What are materials that are good conductors of thermal energy called?
[ "atmospheric conductors", "geospatial conductors", "reflective conductors", "thermal conductors" ]
D
sciq-8469
multiple_choice
What is the most widely distributed organism around?
[ "microbes", "cockroaches", "phages", "viruses" ]
C
scienceQA-12048
multiple_choice
What do these two changes have in common? carving a piece of wood butter melting on a hot day
[ "Both are chemical changes.", "Both are only physical changes.", "Both are caused by heating.", "Both are caused by cooling." ]
B
Step 1: Think about each change. Carving a piece of wood is a physical change. The wood changes shape, but it is still made of the same type of matter. Butter melting on a hot day is a change of state. So, it is a physical change. The butter changes from solid to liquid, but it is still made of the same type of matter. Step 2: Look at each answer choice. Both are only physical changes. Both changes are physical changes. No new matter is created. Both are chemical changes. Both changes are physical changes. They are not chemical changes. Both are caused by heating. Butter melting on a hot day is caused by heating. But carving a piece of wood is not. Both are caused by cooling. Neither change is caused by cooling.
sciq-10644
multiple_choice
What part of the body controls the responses of hunger and satiety?
[ "small intestine", "brain", "blood", "heart" ]
B
sciq-10270
multiple_choice
What does the blue color of the pulmonary arteries reflect?
[ "they are oxygenated", "they are lost", "they are done", "they are deoxygenated" ]
D
sciq-1386
multiple_choice
What muscle is imperative to breathing in helping the air move in and out of the lungs?
[ "diaphragm", "spleen", "kidneys", "uterus" ]
A
sciq-8351
multiple_choice
What is the disease where some alveoli of the lungs fill with fluid?
[ "lung cancer", "leukemia", "lyme disease", "pneumonia" ]
D
sciq-4542
multiple_choice
A chain of what structures form as an oceanic plate moves over a hotspot?
[ "earthquakes", "ridges", "outcrops", "volcanoes" ]
D
ai2_arc-969
multiple_choice
What atoms combine to make up a molecule of water? 1. 1 hydrogen, 1 oxygen 2.
[ "hydrogen,", "oxygen", "2 hydrogen, 1 oxygen", "2 hydrogen, 2 oxygen" ]
C
scienceQA-30
multiple_choice
Select the living thing.
[ "teddy bear", "amoebae", "van", "kite" ]
B
A teddy bear is not a living thing. Teddy bears 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 kite is not a living thing. A kite does not have all the traits of a living thing. It moves fast in the wind, but it does not grow. It does not need food or water. A van is not a living thing. A van does not have all the traits of a living thing. Vans need energy, but they do not eat food. They get energy from gasoline or electricity. Vans do not grow. Amoebae are living things. Amoebae grow and respond to their environment. They need food and water. Amoebae are made up of just one cell. Amoebae live in fresh water, in salt water, and in the soil.
sciq-7244
multiple_choice
Along with other organelles, all eukaryotic cells possess what structure?
[ "flagella", "chromosomes", "cell walls", "nucleus" ]
D
sciq-6755
multiple_choice
What does the secretion of the hormone cholecystokinin stimulate the release of?
[ "pancreatic juices, bile", "insulin and pepsin", "urea", "sweat, saliva" ]
A
sciq-5728
multiple_choice
Both endocytosis and ______ are active transport processes.
[ "proteolysis", "biosynthesis", "cellular respiration", "exocytosis" ]
D
sciq-5987
multiple_choice
Because conditions are not ideal, most populations grow ____________.
[ "historically", "logistically", "SOCIALLY", "mathematically" ]
B
sciq-852
multiple_choice
What two elements do chloroplasts split water into?
[ "Carbon and water", "vaporize and oxygen", "Salt and sodium", "hydrogen and oxygen" ]
D