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question
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481 values
ai2_arc-510
multiple_choice
Plants can help prevent erosion or contribute to erosion. Which describes how plants could contribute to erosion?
[ "Plants slow the runoff of water and soil.", "Plant roots grow in rocks, breaking the rocks.", "Plant roots hold the soil in place against wind.", "Plants break the impact of raindrops before they hit the soil." ]
B
sciq-2537
multiple_choice
What type of pollution comes from sewage, storm drains, septic tanks, boats, and runoff from yards?
[ "municipal", "social", "urban", "collective" ]
A
sciq-4729
multiple_choice
What are scientists called who study the weather and give forecasts?
[ "geologists", "botanists", "meteorologists", "climatologists" ]
C
sciq-6936
multiple_choice
Free ear lobes, widow's peak and a dimpled chin are examples of what kind of traits in humans?
[ "genetic disorders", "spontaneous mutations", "adaptations", "mendelian" ]
D
sciq-9217
multiple_choice
What term describes motion that repeats itself at regular time intervals, such as exhibited by a vibrating guitar string?
[ "gravitational pull", "apparent motion", "periodic motion", "specific speed" ]
C
sciq-7912
multiple_choice
Science is the process of knowing about the natural universe through observation and this?
[ "variation", "experiment", "Test", "experimental" ]
B
sciq-11269
multiple_choice
What is a thin layer of bacteria that sticks to a surface?
[ "a spicule", "a choanocyte", "a monofilm", "a biolfilm" ]
D
sciq-5348
multiple_choice
Acids are the opposites of what?
[ "water", "bases", "gas", "solids" ]
B
sciq-9288
multiple_choice
What part of the plant do nutrients enter?
[ "the seeds", "the stem", "the roots", "the flower" ]
C
sciq-5986
multiple_choice
What is the thin coat of phospholipids that surrounds the cell and controls what enters and leaves?
[ "plasma", "cell membrane", "blood", "myelin" ]
B
sciq-10540
multiple_choice
Natural selection for what type of trait changes the distribution of phenotypes?
[ "major trait", "polygenic trait", "maladaptive trait", "parent trait" ]
B
sciq-551
multiple_choice
What is the transfer of heat by a current?
[ "convection", "radiation", "combustion", "diffusion" ]
A
sciq-2638
multiple_choice
The process of microscope mountains and valleys on the surface of a material interacting with another material is called?
[ "tension", "motion", "vibration", "friction" ]
D
sciq-11193
multiple_choice
What is another word for brooding- keeping eggs warm while the embryos develop?
[ "fertilization", "incubation", "hibernation", "spawning" ]
B
sciq-2954
multiple_choice
What is prosopagnosia?
[ "face blindness", "way blindness", "lack of memory", "time blindness" ]
A
sciq-2328
multiple_choice
What forms when oceanic crust subducts into the mantle at convergent plate boundaries?
[ "tsunamis", "glaciers", "coral", "volcanic mountain ranges" ]
D
sciq-9355
multiple_choice
What is the part of the shadow that is partially lit called?
[ "pleura", "pentila", "eclipse", "penumbra" ]
D
sciq-3992
multiple_choice
What kind of reasoning involves formulating generalizations inferred from careful observation and the analysis of a large amount of data?
[ "skepticism", "inductive", "reflexive", "deductive" ]
D
sciq-1517
multiple_choice
The sternum and 12 pairs of ribs with their costal cartilages make up what?
[ "thoracic cage", "the core", "chest cage", "heart cage" ]
A
sciq-825
multiple_choice
Why have rivers in arid regions been reduced to trickles?
[ "emigration", "diversion of water", "rainforest destruction", "global warming" ]
B
sciq-3969
multiple_choice
Chemical energy is another form of which energy?
[ "nuclear energy", "mechanical energy", "heat energy", "potential energy" ]
D
sciq-621
multiple_choice
The vector sum of all the torques acting on an object is called what?
[ "peak capacity", "torque load", "homeostasis", "net torque" ]
D
sciq-8360
multiple_choice
When fuel is burned most of the energy is released as what?
[ "humidity", "precipitation", "condensation", "heat" ]
D
sciq-982
multiple_choice
What is the distinctive shape of the molecule that contains genetic information?
[ "spiral", "cube", "conical", "cylindrical" ]
A
sciq-3153
multiple_choice
Rounded grains indicate that the minerals eroded from what?
[ "fossils", "recent rock", "earlier rock", "iron" ]
C
sciq-11529
multiple_choice
How do organophostbate pesticides work?
[ "inhibiting testosterone", "inhibiting reticulum", "inhibiting cryptosporidium", "inhibiting acetylcholinesterase" ]
D
sciq-10042
multiple_choice
What is the stage between a zygote and polyp?
[ "larva", "pupa", "egg", "worm" ]
A
sciq-677
multiple_choice
How much space a surface covers is known as what?
[ "Flatness", "Lenght", "area", "Height" ]
C
sciq-4269
multiple_choice
Budding in sponges is a form of what type of reproduction?
[ "sexual", "reasonable", "asexual", "competitive" ]
C
sciq-10565
multiple_choice
The creation of a voltage across a current-carrying conductor by a magnetic field is known as what?
[ "show effect", "hall effect", "newton effect", "off effect" ]
B
sciq-2065
multiple_choice
How can people access water in an aquifer that does not flow from a spring or a geyser?
[ "evaporation", "generate electricity", "mound building", "dig a well" ]
D
sciq-1789
multiple_choice
There are three flat skeletal muscles in the antero-lateral wall of what?
[ "abdomen", "shoulder socket", "thoracic cavity", "hip joint" ]
A
sciq-4141
multiple_choice
Fractures, osteoarthritis, and rickets are problems of which body system?
[ "circulatory system", "digestive system", "skeletal system", "cardiovascular system" ]
C
sciq-9515
multiple_choice
What is the term for animals that defend their area?
[ "predatory", "territorial", "contain", "Grazing" ]
B
sciq-5330
multiple_choice
Synthesis, decomposition, replacement, and combustion are all types of what reaction?
[ "chemical", "mineral", "toxic", "natural" ]
A
sciq-5794
multiple_choice
What term is used to describe major changes in the genetic material?
[ "mutational alterations", "eukaryotic alterations", "chromosomal alterations", "generational alterations" ]
C
ai2_arc-631
multiple_choice
In a healthy forest, dead trees and limbs fall to the ground and decompose. Which of these statements best describes why decomposition is important to a forest ecosystem?
[ "Nutrients are released when wood is broken down.", "Worms produce oxygen used by other organisms.", "Dead trees provide nest sites for many different species of birds.", "Water is stored in dead trees and limbs." ]
A
scienceQA-1077
multiple_choice
Select the reptile below.
[ "porcupinefish", "anchovy", "fire salamander", "cobra" ]
D
A fire salamander is an amphibian. It has moist skin and begins its life in water. Fire salamanders can release poison from their skin. This poison helps protect them from predators. A cobra is a reptile. It has scaly, waterproof skin. Most cobras have a wide, flat hood below their head. A cobra can display its hood to scare away a predator. An anchovy is a fish. It lives underwater. It has fins, not limbs. An anchovy is a small fish that lives in the ocean. Like some other types of fish, anchovies swim in large groups called schools. 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.
sciq-3463
multiple_choice
What form does formaldehyde take at room temperature?
[ "solid", "gas", "liquids", "plasma" ]
B
sciq-67
multiple_choice
What are the only truly innate behaviors in humans called?
[ "reflexes", "flinches", "feats", "automatic movements" ]
A
ai2_arc-321
multiple_choice
What is the relationship between a community and a population?
[ "A population is smaller than a community.", "A population is larger than a community.", "A population includes communities of organisms interacting.", "A community includes populations of organisms interacting." ]
D
sciq-539
multiple_choice
What is the term for the measure of a fluid's thickness?
[ "elasticity", "salinity", "viscosity", "friction" ]
C
scienceQA-7952
multiple_choice
What do these two changes have in common? mixing lettuce and salad dressing melting glass
[ "Both are only physical changes.", "Both are caused by cooling.", "Both are chemical changes.", "Both are caused by heating." ]
A
Step 1: Think about each change. Mixing lettuce and salad dressing is a physical change. Together, the salad and dressing make a mixture. But making this mixture does not form a different type of matter. Melting glass is a change of state. So, it is a physical change. The glass changes from solid to liquid. But a different type of matter is not formed. 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. Glass melting is caused by heating. But mixing lettuce and salad dressing is not. Both are caused by cooling. Neither change is caused by cooling.
sciq-6310
multiple_choice
What kind of medical intervention seeks to eradicate diseases like polio and measles?
[ "nutrition", "malnutrition", "surgical intervention", "vaccination" ]
D
sciq-2529
multiple_choice
Algae are similar to plants in that they both produce their food through what process?
[ "cell division", "hydrolysis", "photosynthesis", "mitosis" ]
C
sciq-11149
multiple_choice
How many pairs of legs does a millipede have per body segment?
[ "eight", "four", "two", "one" ]
C
sciq-9484
multiple_choice
In what form do plants and animals store sugar for later use?
[ "storage polysaccharides", "processing polysaccharides", "carrying polysaccharides", "management polysaccharides" ]
A
sciq-4961
multiple_choice
What is the master gland of the endocrine system?
[ "pituitary gland", "Hypothyroid", "Thyroid", "Thymus" ]
A
sciq-7460
multiple_choice
An oxy-acetylene torch is an effective way to cut what?
[ "metal", "plastic", "wood", "coal" ]
A
sciq-3239
multiple_choice
What do you call different organs working together?
[ "cellular system", "organ systems", "endocrine system", "maturation systems" ]
B
sciq-4327
multiple_choice
Oxygenated blood is transported by what system?
[ "nervous", "circulatory", "skeletal", "pulmonary" ]
B
sciq-6206
multiple_choice
Concentric circles that spread out through the water around the droplets are actually types of what moving through the water?
[ "winds", "waves", "lines", "troughs" ]
B
sciq-1807
multiple_choice
The role that a particular species plays in its ecosystem is also known as what?
[ "unique", "niche", "type", "market" ]
B
sciq-1329
multiple_choice
Which region of dna consists of one or more genes that encode the proteins needed for a specific function?
[ "antigen", "chromosome", "operon", "mRNA" ]
C
sciq-930
multiple_choice
Leaves respond to these environmental stimuli by producing less what?
[ "oxygen", "carbonate", "chlorophyll", "energy" ]
C
sciq-9923
multiple_choice
Ions that contain fewer electrons than protons have a net positive charge and are called what?
[ "anions", "particles", "cations", "oxides" ]
C
ai2_arc-1099
multiple_choice
Some power plants release heated water into rivers. This practice adds thermal energy to the river that most likely
[ "increases the amount of nutrients in the river.", "provides a better environment for native organisms to grow.", "keeps the river at balance with nature.", "threatens the existence of aquatic organisms." ]
D
sciq-11600
multiple_choice
Food chewed evenly during mastication moisten and lubricate the lining of the mouth and this?
[ "esophagus", "pharynx", "trachea", "larynx" ]
B
sciq-5237
multiple_choice
What technology do scientists use to create models?
[ "patterns", "microscopes", "computers", "calculators" ]
C
sciq-32
multiple_choice
What type of vertebrates are birds?
[ "epidermal tetrapod", "invertebrates", "exothermic", "endothermic tetrapod" ]
D
sciq-7871
multiple_choice
In contrast to mammals and birds, freshwater fishes produce large volumes of very dilute what?
[ "urine", "feces", "nitrogen", "blood" ]
A
sciq-2623
multiple_choice
Scientists utilize what natural process to teach cranes born in captivity to migrate along safe routes?
[ "imprinting", "neuroimaging", "natural selection", "expediting" ]
A
sciq-1590
multiple_choice
Radiometric dating methods, such as carbon-14 dating depend on what type of decay?
[ "radioactive", "microwave", "nuclear", "carbon" ]
A
sciq-9986
multiple_choice
How the individuals in a population are spread throughout their habitat is referred to as what?
[ "population distribution", "habitual distribution", "population spread", "population habitation" ]
A
sciq-7929
multiple_choice
If the experimental value is less than the accepted value, the error is what?
[ "negative", "effective", "caused", "positive" ]
A
sciq-9386
multiple_choice
The part of a plant that is responsible for reproduction is the?
[ "flower", "root", "stem", "leaf" ]
A
sciq-6645
multiple_choice
What is lava called before it reaches the surface of the earth?
[ "crust", "magma", "pyrite", "rock" ]
B
sciq-3593
multiple_choice
Where does digestion begin?
[ "stomach", "mouth", "esophogus", "tongue" ]
B
sciq-3886
multiple_choice
What is the source of most of the energy used?
[ "fossil fuels", "the Moon", "the sun", "the Earth" ]
C
sciq-6720
multiple_choice
Which part of a neuron contains the nucleus and most of the major organelles?
[ "organ body", "retinal body", "simple body", "cell body" ]
D
sciq-715
multiple_choice
The oxygen regions of the water molecules have what kind of charge?
[ "neutral", "negative", "certain", "positive" ]
B
scienceQA-12116
multiple_choice
Select the amphibian.
[ "wombat", "barn owl", "helmeted iguana", "African bullfrog" ]
D
An African bullfrog is an amphibian. It has moist skin and begins its life in water. Frogs live near water or in damp places. Most frogs lay their eggs in water. A wombat is a mammal. It has fur and feeds its young milk. Wombats have strong claws on their front feet. They use their claws to dig underground holes called burrows. A barn owl is a bird. It has feathers, two wings, and a beak. Barn owls live on every continent except Antarctica. A helmeted iguana is a reptile. It has scaly, waterproof skin. Iguanas are a type of lizard. Iguanas eat plants and fruit.
sciq-3047
multiple_choice
The smallest part of an element that maintains the identity of that element is called what?
[ "atom", "nucleus", "neutron", "lattice" ]
A
sciq-5005
multiple_choice
What category of joints is immovable?
[ "sporozoans", "diarthroses", "synarthrosis", "amphiarthroses" ]
C
sciq-8242
multiple_choice
Snippet 2: one of the reasons the periodic table is so useful is because its structure allows us to qualitatively determine how some properties of the elements vary versus their position on the periodic table. the variation of properties versus position on the periodic table is called what?
[ "acoustic trends", "gravity trends", "periodic trends", "chemical trends" ]
C
sciq-10937
multiple_choice
Translucent matter is matter that transmits and does what else to light?
[ "reflects", "scatters", "absorbs", "condenses" ]
B
sciq-5749
multiple_choice
Terrestrial and aquatic are the two basic categories of what, on earth?
[ "atmospheres", "biomes", "dendrites", "substrates" ]
B
sciq-10444
multiple_choice
The first photosynthetic organisms were not plants, but types of what that lived in the water?
[ "bacteria", "fungi", "pathogens", "algae" ]
A
sciq-6081
multiple_choice
Australia is home to many endemic species. the (a) wallaby (wallabia bicolor), a medium-sized member of the kangaroo family, is a pouched mammal, or this?
[ "placental", "rodent", "primate", "marsupial" ]
D
sciq-4137
multiple_choice
What kind of bonds, where electrons are transferred rather than shared, are considered the ultimate in polarity?
[ "soluble bonds", "covalent bonds", "magnetic bonds", "ionic bonds" ]
D
sciq-5696
multiple_choice
What causes cancer cells to avoid elimination and continue to multiply?
[ "chronic cell division", "uncontrolled cell division", "persistent cell division", "continuous cell division" ]
B
sciq-5730
multiple_choice
What type of acid is often used as a preservative for acidic foods such as fruit juices?
[ "sulfuric acid", "hydrochloric acid", "citric acid", "benzoic acid" ]
D
sciq-7432
multiple_choice
How long does it take for the earth to make a complete rotation of its axis?
[ "one month", "24.25 hours", "one year", "24 hours" ]
D
sciq-5449
multiple_choice
After fertilization, how many cells does a zygote form into?
[ "six", "one", "three", "two" ]
D
sciq-9844
multiple_choice
What element is a biochemical compound based on?
[ "hydrogen", "oxygen", "nitrogen", "carbon" ]
D
sciq-3728
multiple_choice
The reproductive tissues of male and female humans develop similarly in utero until a low level of the hormone testosterone is released from male what?
[ "liver", "gonads", "kidneys", "bladder" ]
B
sciq-4038
multiple_choice
What are atoms or groups of atoms called which carry and electrical charge?
[ "protons", "electrons", "molecules", "ions" ]
D
sciq-85
multiple_choice
What are unsaturated hydrocarbons with at least one double bond between carbon atoms called?
[ "enzymes", "alkenes", "amines", "peptides" ]
B
scienceQA-78
multiple_choice
Select the vertebrate.
[ "redback spider", "common octopus", "birdwing butterfly", "asp viper" ]
D
Like other octopuses, a common octopus is an invertebrate. It does not have a backbone. It has a soft body. Like other spiders, a redback spider is an invertebrate. It does not have a backbone. It has an exoskeleton. A birdwing butterfly is an insect. Like other insects, a birdwing butterfly is an invertebrate. It does not have a backbone. It has an exoskeleton. An asp viper is a reptile. Like other reptiles, an asp viper is a vertebrate. It has a backbone.
sciq-9064
multiple_choice
What do you call the membrane-bounded droplets that have some properties of cells?
[ "rods", "sporozoans", "membranes.", "protocells" ]
D
sciq-1770
multiple_choice
What planet is the easiest to observe?
[ "mars", "uranus", "pluto", "mercury" ]
A
sciq-3705
multiple_choice
What is the process by which wind blows to make the ground surface gets lower and rockier ?
[ "layering", "deflation", "inflation", "stagnation" ]
B
sciq-7527
multiple_choice
Different types of interference include destructive and what else?
[ "consistent", "helpful", "active", "constructive" ]
D
sciq-3394
multiple_choice
Which fuels provide most of the world’s energy?
[ "fossil fuels", "pattern fuels", "artificial fuels", "coal fuels" ]
A
sciq-9115
multiple_choice
What helps pumice float in water?
[ "large mass", "gas bubble holes", "high density", "gravity" ]
B
sciq-9638
multiple_choice
Where are bile acids, needed to emulsify lipids, stored in the body?
[ "cerebellum", "womb", "liver", "gallbladder" ]
D
sciq-164
multiple_choice
What is defined as a repeating series of events that include growth, dna synthesis, and cell division?
[ "photosynthesis", "meiosis", "puberty", "cell cycle" ]
D
sciq-6643
multiple_choice
Prokaryotes divide via binary fission and do not undergo what process of cell division?
[ "meiosis", "mitosis", "prophase", "fusion" ]
B
sciq-9635
multiple_choice
What is the storage form of glucose in humans and other vertebrates?
[ "neurons", "glycogen", "fructose", "placenta" ]
B
sciq-7150
multiple_choice
What two-word term refers to the number of different species in the community?
[ "face-richness", "bacteria richness", "group-richness", "species richness" ]
D