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481 values
sciq-6733
multiple_choice
In preparation for phagocytosis, a portion of the inward-facing surface of the plasma membrane becomes coated with a protein called clathrin, which stabilizes this section of what?
[ "membrane", "mitochondria", "nuclei", "particles" ]
A
sciq-994
multiple_choice
Physical and chemical properties of geometric isomers are generally what?
[ "difficult", "round", "similar", "different" ]
D
sciq-3348
multiple_choice
While matter is recycled, ecosystems need a constant input of what?
[ "heating", "food", "light", "energy" ]
D
sciq-9153
multiple_choice
What nest of cells protect the egg as it matures in the ovary?
[ "the clump", "the epidermis", "the follicle", "the tube" ]
C
sciq-3413
multiple_choice
An alternative to inclusive fitness is group selection, a type of what scenario where small groups of organisms of the same species are effectively acting as single (perhaps colonial) organisms?
[ "combination", "evolutionary", "molecular", "introductory" ]
B
sciq-797
multiple_choice
The tidal forces near what celestial phenomena are so great they can actually tear matter from a companion star?
[ "dwarf star", "black holes", "large holes", "wormholes" ]
B
sciq-6340
multiple_choice
What is the most abundant biochemical compound, making up the cell walls of plants?
[ "cellulose", "cytoplasm", "magnesium", "mitochondria" ]
A
sciq-5602
multiple_choice
Human culture is related to evolutionary theory in the discipline of what?
[ "psychopathology", "sociobiology", "ethnology", "astrology" ]
B
sciq-8767
multiple_choice
What is the most common type of organic compound?
[ "carbohydrates", "hydrocarbons", "proteins", "lipids" ]
A
sciq-2506
multiple_choice
Neurons are classified based on the direction in which they carry what?
[ "neurotransmitters", "metabolism impulses", "energy", "nerve impulses" ]
D
sciq-5796
multiple_choice
Processes in which matter changes between liquid and solid states are freezing and?
[ "boiling", "melting", "transpiration", "steaming" ]
B
sciq-6195
multiple_choice
What is the name for an underground layer of rock that is saturated with groundwater?
[ "gradient", "artesian well", "aqueous cavity", "aquifer" ]
D
sciq-6124
multiple_choice
What type of image is formed when light rays diverge in front of a mirror?
[ "reversed", "fake", "large", "virtual" ]
D
sciq-9934
multiple_choice
Do tropical regions have very high or very low rates of immigration?
[ "medium", "too high", "very high", "low" ]
C
sciq-8120
multiple_choice
While normal light microscopes can magnify objects up to about 1,500 times, what advanced instruments can magnify objects up to 1,000,000 times?
[ "magnetic microscopes", "electron microscopes", "micro microscopes", "electric microscopes" ]
B
sciq-6564
multiple_choice
How do plants grow?
[ "through cell growth and cell division", "through mitosis and cell division", "through pollination and cell division", "through cell growth and sexual reproduction" ]
A
sciq-7663
multiple_choice
Hfcs are used as a replacement for what?
[ "gases", "cfcs", "nitrofluorocarbons", "pollutants" ]
B
sciq-8371
multiple_choice
When lactose is present in the cell, what allows the lac genes to be expressed?
[ "binding of expressor protein", "the addition of water", "concentration of repressor protein", "nonbinding of repressor protein" ]
D
sciq-1045
multiple_choice
What type of invisible waves are used in microwaves?
[ "radiation", "thermal", "convection", "electric" ]
A
sciq-4567
multiple_choice
What is the fruiting body that occurs after two hyphae mate and form a mycelium with sporangia?
[ "fungus", "yeast", "mold", "mushroom" ]
D
sciq-10559
multiple_choice
What term is used to describe birds that hunt, eat mammals, and other birds?
[ "predators", "consumers", "warriors", "raptors" ]
D
sciq-9629
multiple_choice
What are electromagnetic waves with the longest wavelengths called?
[ "infrared waves", "channel waves", "sound waves", "radio waves" ]
D
sciq-3605
multiple_choice
What is water falling from the sky called?
[ "acid", "precipitation", "temperature", "snow" ]
B
sciq-8080
multiple_choice
What is the term for the green pigment in leaves that captures energy from the sun?
[ "carbonate", "chlorophyll", "verdye", "ammonia" ]
B
sciq-9668
multiple_choice
What state of matter is characterized by tiny particles separated by large distances, which do not experience any force of attraction or repulsion with each other?
[ "gas", "steam", "emissions", "liquids" ]
A
sciq-1231
multiple_choice
What are the major sites of gibberellin production?
[ "soil and leaves", "young roots and leaves", "stem and roots", "flower and fruit" ]
B
sciq-7197
multiple_choice
The combustion of propane gas produces carbon dioxide and what else?
[ "methane", "phosphorous", "water vapor", "carbon monoxide" ]
C
sciq-598
multiple_choice
When cats mark their territory by rubbing their face against an object, they deposit chemicals released by what structures?
[ "taste buds", "scent glands", "whiskers", "pituitary glands" ]
B
sciq-9084
multiple_choice
When an action and reaction occur, what is transferred from one object to the other, yet in combination it remains the same?
[ "energy", "momentum", "force", "matter" ]
B
sciq-4139
multiple_choice
When what common element forms single bonds with other atoms, the shape is tetrahedral, and when its atoms form a double bond, the shape is planar?
[ "carbon", "oxygen", "silicon", "hydrogen" ]
A
sciq-5420
multiple_choice
What term is used to describe the way that animals interact with each other or their environment?
[ "animal range", "animal decline", "animal behavior", "animal magnetism" ]
C
ai2_arc-357
multiple_choice
Which of these most likely has the GREATEST mass?
[ "Chicken", "Puppy", "Lizard", "Horse" ]
D
scienceQA-2751
multiple_choice
What do these two changes have in common? silver jewelry tarnishing baking cookies
[ "Both are only physical changes.", "Both are caused by heating.", "Both are chemical changes.", "Both are caused by cooling." ]
C
Step 1: Think about each change. Metal turning less shiny over time is called tarnishing. Silver jewelry tarnishing is a chemical change. The silver reacts with sulfur in the air to form black tarnish. The tarnish is a different type of matter that was not there before the change. Baking cookies is a chemical change. The type of matter in the cookie dough changes when it is baked. The cookie dough turns into cookies! 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. Baking is caused by heating. But silver tarnishing is not. Both are caused by cooling. Neither change is caused by cooling.
sciq-216
multiple_choice
Global warming will raise ocean levels due to melt water from glaciers and the greater volume of what?
[ "warmer water", "rain", "rainforests", "greenhouse gases" ]
A
sciq-2542
multiple_choice
A diver's air bubbles increase in size as he approaches the surface because what decreases?
[ "water energy", "water weight", "water direction", "water pressure" ]
D
sciq-11294
multiple_choice
When plants reproduce, the offspring has characteristics similar to the?
[ "siblings", "parents", "cousins", "grandparents" ]
B
sciq-8993
multiple_choice
In single-celled organisms, what does the plasma membrane extensions help the organisms to do?
[ "prevent", "inspect", "increase", "move" ]
D
scienceQA-11522
multiple_choice
Select the living thing.
[ "Mount Rushmore National Memorial", "zebra", "rainboot", "bathtub" ]
B
Mount Rushmore National Memorial is not a living thing. The Mount Rushmore National Memorial is a sculpture of four American presidents: George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln. The sculpture 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. A rainboot is not a living thing. Rainboots 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 zebra is a living thing. Zebras grow and respond to their environment. They need food and water. Zebras are made up of many cells. A bathtub is not a living thing. Bathtubs 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.
ai2_arc-88
multiple_choice
After observing several dogs running, students ask the following question: Do dogs with long hair run faster than dogs with short hair? How can the students best answer their question?
[ "record the weights and heights of many dogs", "measure the speeds and hair lengths of many dogs", "research to find the type of dog with the longest hair", "race one long-haired dog against one short-haired dog" ]
B
sciq-2234
multiple_choice
In the water molecule, two of the electron pairs are lone pairs rather than what?
[ "ions pairs", "acid pairs", "bonding ions", "bonding pairs" ]
D
sciq-3046
multiple_choice
When a solute dissolves into a solvent what is that called?
[ "viscosity", "solubility", "enthalpy", "mixing" ]
C
sciq-11073
multiple_choice
What process joins two haploid gametes into a diploid zygote?
[ "embryo", "fertilization", "fusion", "migration" ]
B
sciq-7412
multiple_choice
Cooling or evaporation of what from the sea surface makes surface water dense?
[ "warm water", "dirty water", "salt water", "fresh water" ]
D
sciq-4659
multiple_choice
Professionals known as genetic counselors can help them understand the risks of?
[ "disease", "infection", "children being affected", "contagion" ]
C
sciq-11639
multiple_choice
What can protons and neutrons be broken down into?
[ "molecules", "quarks", "strings", "ions" ]
B
ai2_arc-718
multiple_choice
Kailey and LeAnn were preparing a report on ocean tides. Which information should they include in their report concerning the greatest influence on the strength of a high tide in a particular area?
[ "the position of the Moon around Earth", "the position of Earth around the Sun", "the rotation of the Moon", "the rotation of Earth" ]
A
scienceQA-2161
multiple_choice
What do these two changes have in common? butter melting on a hot day burning a marshmallow over a campfire
[ "Both are caused by cooling.", "Both are caused by heating.", "Both are only physical changes.", "Both are chemical changes." ]
B
Step 1: Think about each change. 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. Burning a marshmallow is a chemical change. The heat from the fire causes the type of matter in the marshmallow to change. The marshmallow becomes black and crispy. Step 2: Look at each answer choice. Both are only physical changes. Butter melting on a hot day is a physical change. But burning a marshmallow is not. Both are chemical changes. Burning a marshmallow is a chemical change. But butter melting on a hot day is not. Both are caused by heating. Both changes are caused by heating. Both are caused by cooling. Neither change is caused by cooling.
sciq-4620
multiple_choice
The brain and spinal cord are part of what system, which serves as a control center?
[ "central nervous system", "active nervous system", "primary nervous system", "large nervous system" ]
A
sciq-8495
multiple_choice
Which organisms capture light energy and convert it to chemical energy inside their cell?
[ "pores", "chloroplasts", "sporozoans", "phototrophs" ]
D
sciq-4692
multiple_choice
After what state is reached, the concentrations of all reaction components remain constant unless a change is made to the system?
[ "equality", "level", "equilibrium", "homeostasis" ]
C
sciq-7691
multiple_choice
What is the most prevalent gas in the atmosphere, but not the most vital for life?
[ "nitrogen", "carbon dioxide", "oxygen", "argon" ]
A
ai2_arc-854
multiple_choice
Marni runs 1500 meters around the school track. What does she need to know in order to find out her speed?
[ "her time from start to finish", "the number of steps she took", "her heart rate at the finish line", "the direction she began running" ]
A
ai2_arc-360
multiple_choice
A 72 W navigation unit on a commercial aircraft has a 24 V power supply and uses 3 A of electric current. What is the electrical resistance of the navigation unit?
[ "4 ohms", "8 ohms", "13 ohms", "22 ohms" ]
B
sciq-9828
multiple_choice
Resistance to pesticides in a population of insects is an example of what?
[ "macroevolution", "redistributions", "extinction", "microevolution" ]
D
sciq-11126
multiple_choice
What is the smallest particle of an element that still has the properties of that element is called?
[ "nucleus", "neutron", "atom", "proton" ]
C
sciq-7721
multiple_choice
Vertebrates lacking what structures often use lungs for gas exchange?
[ "gills", "pores", "nostrils", "spores" ]
A
sciq-5827
multiple_choice
What are the four well-known states of matter?
[ "solid, liquid, plasma, and metal", "solid, liquid, gas, and plasma", "solid, liquid, gas, and wave", "solid , imine , gas , and plasma" ]
B
sciq-780
multiple_choice
The chloroplasts contain a green pigment called what?
[ "chlorophyll", "sodium", "chloroplasm", "melanin" ]
A
scienceQA-4559
multiple_choice
Which organ gives the body its structure and allows it to move?
[ "brain", "heart", "skin", "skeleton" ]
D
scienceQA-11527
multiple_choice
Select the solid.
[ "fruit punch", "coffee", "rain puddle", "beads" ]
D
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. Each bead in the jar is a solid. If you put many beads into a bottle, they will take the shape of the bottle, as a liquid would. But be careful! Beads are not a liquid. Each bead still has a size and shape of its own. A rain puddle is a liquid. A liquid takes the shape of any container it is in. If you collect rainwater in a bucket, the rainwater will take the shape of the bucket. But the rainwater will still take up the same amount of space. 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-4774
multiple_choice
What are genes that are close together on the same chromosome called?
[ "infected genes", "stored genes", "linked genes", "mutated genes" ]
C
sciq-8090
multiple_choice
What asymmetrical organ has four chambers and, in humans, is about the size of a clenched fist?
[ "brain", "heart", "liver", "kidney" ]
B
sciq-838
multiple_choice
What is the study of the interaction between matter and energy called?
[ "astronomy", "chemistry", "geology", "climatology" ]
B
sciq-892
multiple_choice
What part of the heart receives the blood is pumped from veins of the systemic circuit?
[ "right ventricle", "left atrium", "right atrium", "left ventricle" ]
C
sciq-10265
multiple_choice
What type of energy from a warm cola results in melting when it is transferred to the much colder ice?
[ "cyclic energy", "gaseous energy", "protective energy", "thermal energy" ]
D
sciq-6925
multiple_choice
What is the last step in a scientific investigation?
[ "communicating findings", "documenting findings", "retesting findings", "verifying findings" ]
A
sciq-4602
multiple_choice
The temperature of the products is typically lower than the temperature of the reactants in what type of reaction?
[ "parabolic", "autotrophic", "exothermic", "endothermic" ]
D
sciq-8397
multiple_choice
Strong, stable bonds between carbon atoms produce complex molecules containing chains, branches, and rings; the chemistry of these compounds is called what?
[ "organic chemistry", "animal chemistry", "nuclear chemistry", "inorganic chemistry" ]
A
sciq-4445
multiple_choice
Footprints, burrows, and waste are considered what type of fossils?
[ "movement fossils", "trace fossils", "morphology fossils", "crater fossils" ]
B
sciq-2425
multiple_choice
In what subgroup are oligochaetes classified?
[ "reptiles", "mammals", "polychaetes", "insects" ]
C
sciq-2889
multiple_choice
What is the climate of a small area called?
[ "biome", "microclimate", "microevolution", "ecosystem" ]
B
sciq-590
multiple_choice
In moss, what becomes elongated to elevate the capsule to enhance spore dispersal?
[ "porta", "sera", "seta", "risa" ]
C
sciq-10150
multiple_choice
The end result of diffusion is an equal concentration, or equilibrium , of molecules on both sides of what?
[ "the organism", "the membrane", "the cell", "the organelle" ]
B
sciq-10652
multiple_choice
Water behind a dam has potential energy. moving water, such as in a waterfall or a rapidly flowing river, has this?
[ "thermal energy", "residual energy", "kinetic energy", "compression energy" ]
C
ai2_arc-671
multiple_choice
Which type of activity would most likely be included on a weather map?
[ "satellite", "seismic", "volcanic", "hurricane" ]
D
sciq-2140
multiple_choice
The intensity or rate of radiation emission _________ with temperature?
[ "randomly fluctuates", "decreases", "does not vary", "increases" ]
D
sciq-3678
multiple_choice
Where does the christmas tree worm live?
[ "northeast coral reefs", "Atlantic shoreline", "rainforests", "tropical coral reefs" ]
D
sciq-6765
multiple_choice
What do extensive properties depend on the amount of?
[ "sample temperature", "independent variables", "matter in a sample", "experimental controls" ]
C
sciq-10107
multiple_choice
What term describes diseases caused by abnormal cells in the body dividing uncontrollably?
[ "diabetes", "cancer", "radiation", "eczema" ]
B
sciq-458
multiple_choice
Where are aerofoils found?
[ "birds and airplanes", "airplanes and plants", "birds and cars", "birds and busses" ]
A
scienceQA-4610
multiple_choice
Select the fish below.
[ "California newt", "goldfish", "red salamander", "white stork" ]
B
A goldfish is a fish. It lives underwater. It has fins, not limbs. Goldfish are popular as pets in many countries today. They were first kept as pets by people in ancient China. A California newt is an amphibian. It has moist skin and begins its life in water. Some newts live in water. Other newts live on land but lay their eggs in water. A red salamander is an amphibian. It has moist skin and begins its life in water. Red salamanders do not have lungs. They breathe through their skin! A white 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.
ai2_arc-846
multiple_choice
Some foods that humans eat, such as corn and peas, are actually seeds from plants. What best describes the role of humans in a food web containing these plants?
[ "a consumer", "a decomposer", "a producer", "a scavenger" ]
A
sciq-2045
multiple_choice
The cochlea is a shell-like structure that is full of fluid and lined with nerve cells called what?
[ "sperm cells", "red cells", "brain cells", "hair cells" ]
D
sciq-3121
multiple_choice
Geologists group rocks based on how they what?
[ "dissove", "look", "form", "move" ]
C
sciq-8055
multiple_choice
Are cnidarians typically found in ocean or fresh water habitats?
[ "freshwater", "ocean", "rivers", "lakes" ]
B
sciq-10392
multiple_choice
Metabolism includes both anabolic and which other reaction?
[ "biogenic", "catabolic", "enzymatic", "organic" ]
B
sciq-8830
multiple_choice
Electric current is measured in coulombs per second, also called what?
[ "joules", "voltages", "watts", "amperes" ]
D
sciq-3770
multiple_choice
Transforming from a caterpillar to a butterfly requires a lot of what?
[ "food", "fuel", "Water", "energy" ]
D
sciq-3479
multiple_choice
Which state of matter is characterized by molecules with minimal movement and strong forces between them?
[ "gas", "liquid", "solid", "plasma" ]
C
sciq-11052
multiple_choice
Salts of weak acids or bases can affect the acidity or what of their aqueous solution?
[ "atomicity", "basicity", "ductility", "compound" ]
B
sciq-8705
multiple_choice
The force that blood exerts upon the walls of the blood vessels or upon the chambers of the heart is known as blood what?
[ "squeeze", "vaccuum", "pressure", "push" ]
C
sciq-5167
multiple_choice
What are materials that have a low resistance to electrical current called?
[ "electrical conductors", "resistors", "fast conductors", "electrons" ]
A
sciq-9616
multiple_choice
Where do polychaete worms live?
[ "the ocean floor", "garden soil", "lakes", "digestive tract" ]
A
sciq-1059
multiple_choice
A switch in a circuit controls the flow of what, specifically, within the circuit?
[ "resistance", "density", "current", "pressure" ]
C
sciq-8644
multiple_choice
What make us sick when they become human parasites?
[ "larvae", "protozoa", "detritus", "viruses" ]
B
sciq-8732
multiple_choice
What are oil in folded layers of rock called?
[ "anticlines", "oscillations", "macroparticle", "dendrites" ]
A
sciq-9653
multiple_choice
The tendency of an object to resist a change in its motion is called what?
[ "isolation", "inertia", "kenetic force", "stabilization" ]
B
sciq-9661
multiple_choice
What is the double-membrane structure that constitutes the outermost portion of the nucleus?
[ "nuclear envelope", "energy fold", "nuclear fold", "energy envelope" ]
A
sciq-10689
multiple_choice
Smog is one example of what type of pollution?
[ "sound", "air", "energy", "light" ]
B
sciq-2668
multiple_choice
What branch of biology uses fossils to study life’s history?
[ "morphology", "entomology", "gerontology", "paleontology" ]
D