question stringlengths 23 307 | id stringlengths 10 10 | choices listlengths 4 4 | answer stringclasses 4 values |
|---|---|---|---|
Which area in a lake is likely to have more nutrients? | sciq-00700 | [
"crust",
"surface",
"bottom",
"reef"
] | C |
Temperature is a measure of how hot or cold an object is relative to another object, whereas heat is the flow of what energy between objects with different temperatures? | sciq-00701 | [
"potential energy",
"thermal energy",
"nuclear energy",
"gravitational energy"
] | B |
Scientists use seismographs and intersecting circles to determine the location of what? | sciq-00702 | [
"earthquake epicenter",
"hurricane",
"tsunami",
"volcano"
] | A |
What happens when iron is exposed to water and oxygen? | sciq-00703 | [
"smoking",
"rusting",
"combustion",
"shrinking"
] | B |
What disease is generally caused by mutations in genes that regulate the cell cycle? | sciq-00704 | [
"cancer",
"heart disease",
"pneumonia",
"arthritis"
] | A |
Proteins are organic compounds made up of what type of acids? | sciq-00705 | [
"lactic",
"enzyme",
"amino",
"nucleic"
] | C |
Speciation is usually due to a single instance of what? | sciq-00706 | [
"accumulation",
"mutation",
"division",
"radiation"
] | B |
What is the name of the extra layer that prokaryotes have outside the cell wall? | sciq-00707 | [
"a capsule",
"a bone",
"a shape",
"a shell"
] | A |
The binary halides are an important subclass of what? | sciq-00708 | [
"gases",
"acids",
"minerals",
"salts"
] | D |
When was construction of the hoover dam completed? | sciq-00709 | [
"1959",
"1935",
"1905",
"1969"
] | B |
Some plants can produce seeds without fertilization and this method of reproduction is known as what? | sciq-00710 | [
"amoebas",
"Density",
"apomixis",
"gametes"
] | C |
What type of chains do unsaturated fatty acids have? | sciq-00711 | [
"bent chains",
"Stait Chains",
"Broken Chains",
"Spiral Chains"
] | A |
Ribosomes are the site of what process? | sciq-00712 | [
"protein synthesis",
"organism synthesis",
"consume synthesis",
"Measure Synthesis"
] | A |
Bacteria and archaea that survive under extreme conditions are called? | sciq-00713 | [
"carotenoids",
"rotifers",
"extremophiles",
"audiophiles"
] | C |
The production and transport of gametes is performed by what type of organs? | sciq-00714 | [
"reproductive",
"degradation",
"skin",
"digestion"
] | A |
What are atoms of the same element but with different numbers of neutrons called? | sciq-00715 | [
"variations",
"electrons",
"masses",
"isotopes"
] | D |
Active transport mechanisms require the use of the cell’s energy, usually in the form of what? | sciq-00716 | [
"ribonucleic acid (RNA)",
"protein",
"deoxyribonucleic acid (DNA)",
"adenosine triphosphate (atp"
] | D |
What kind of energy can move through glass much better than through paper? | sciq-00717 | [
"sound",
"heat",
"light",
"vibrational"
] | C |
What forms when one substance dissolves into another? | sciq-00718 | [
"mixture",
"compound",
"solution",
"solvent"
] | C |
What transition occurs as heat is added or removed from a substance? | sciq-00719 | [
"diffusion transition",
"thermal reaction",
"phase transition",
"heat wave"
] | C |
What is the predicted year that as many as half of all remaining species could go extinct? | sciq-00720 | [
"2040",
"2020",
"3000",
"2050"
] | D |
Which scientist developed the theory of evolution and detailed it in the book origin of species? | sciq-00721 | [
"Gregor Mendel",
"charles darwin",
"Isaac Newton",
"Carl Sagan"
] | B |
Insects are the only invertebrates that can do what? | sciq-00722 | [
"fly",
"reproduce",
"vocalize",
"shed"
] | A |
What basic structures, found in animals and plants, are organized into tissues, organs, and organ systems? | sciq-00723 | [
"seeds",
"proteins",
"bones",
"cells"
] | D |
What do we call the phase of nuclear division, in which one nucleus divides and becomes two nuclei? | sciq-00724 | [
"metaphase",
"cytokinesis",
"prometaphase",
"mitosis"
] | D |
In abalones and limpets, what is conical, but somewhat flattened? | sciq-00725 | [
"the head",
"the heart",
"the bone",
"the shell"
] | D |
What are the physical properties of water and carbon dioxide affected by? | sciq-00726 | [
"weather",
"their polarities",
"temperature",
"weight"
] | B |
Which one of newton's laws describes the direct relationship between force and acceleration? | sciq-00727 | [
"third law",
"first law",
"fourth law",
"second law"
] | D |
The process by which creatures regulate body temperature from the outside through behavioral changes is known as what? | sciq-00728 | [
"misiothermy",
"exterior induction",
"endothermy",
"ectothermy"
] | D |
Because of moving charged particles in its outer core, earth is what? | sciq-00729 | [
"antenna",
"transmitter",
"magnet",
"laser"
] | C |
Color, taste, and melting point are examples of what kind of properties? | sciq-00730 | [
"intensive properties",
"extensive properties",
"experimental properties",
"sensory properties"
] | A |
Amorphous selenium is a photosensitive what? | sciq-00731 | [
"insulator",
"semiconductor",
"electromagnet",
"diffusion"
] | B |
When the rate of condensation becomes equal to the rate of vaporization, the vapor in the container is then said to be in what with the liquid? | sciq-00732 | [
"equilibrium",
"balance",
"synchronization",
"stability"
] | A |
What are the sources of sexual spores in a basidiocarp? | sciq-00733 | [
"annulus",
"stamens",
"conidia",
"basidia"
] | D |
Amylose and amylopectin are the two most common components of naturally occurring what? | sciq-00734 | [
"chromosomes",
"starch",
"carbon",
"protein"
] | B |
Reactive, high polarized substances made of carbon bonded to one carbon atom and one hydrogen atom are known as what? | sciq-00735 | [
"peptides",
"proteins",
"hydrocarbons",
"aldehydes"
] | D |
Relative humidity is related to the partial pressure of what in the air? | sciq-00736 | [
"water vapor",
"solid vapor",
"air vapor",
"gas vapor"
] | A |
What are the two stages in the life cycle of a jellyfish? | sciq-00737 | [
"witch and polyp",
"banshee and polyp",
"medusa and polyp",
"archangel and polyp"
] | C |
What part of the cell holds cell organelles in place within the cytoplasm? | sciq-00738 | [
"nucleus",
"cytoskeleton",
"exoskeleton",
"call wall"
] | B |
What is the name for the process of insects transforming from a young insect to an adult? | sciq-00739 | [
"spontaneous mutation",
"maturation",
"metamorphosis",
"parthenogenesis"
] | C |
Over time, heavy metals build up in the tissues of organisms by what process? | sciq-00740 | [
"biosynthesis",
"solidification",
"oxygenation",
"bioaccumulation"
] | D |
Changes to what that delete, disrupt, or rearrange many loci at once are usually harmful? | sciq-00741 | [
"ribosomes",
"neutrons",
"cells",
"chromosomes"
] | D |
The ability of a material to emit various wavelengths of light is similarly related to its? | sciq-00742 | [
"specific gravity",
"half-life",
"molar mass",
"atomic energy levels"
] | D |
Divergent plate boundaries rift what landforms apart, leading to the formation of a new ocean between them? | sciq-00743 | [
"mountains",
"continents",
"islands",
"coasts"
] | B |
What mineral is stored and is maintained at normal levels in blood by the skeletal system? | sciq-00744 | [
"magnesium",
"calcium",
"selenium",
"potassium"
] | B |
What type of diseases are diseases that are caused by choices that people make in their daily lives? | sciq-00745 | [
"benign diseases",
"lifestyle diseases",
"congenital diseases",
"contagious diseases"
] | B |
A barometer is a device that measures this? | sciq-00746 | [
"water pressure",
"temperature",
"air pressure",
"humidity"
] | C |
What is the term for getting the same results when an experiment is repeated, which implies the results are valid? | sciq-00747 | [
"verification",
"evolution",
"replication",
"extraction"
] | C |
Helices, spheres, and rods are examples of what distinguishing property of prokaryotic cells? | sciq-00748 | [
"texture",
"color",
"shape",
"size"
] | C |
What is the term for the change in momentum vector? | sciq-00749 | [
"gravity",
"impulse",
"release",
"variation"
] | B |
Larger molecules can have many, many of what that serve to keep the molecule together? | sciq-00750 | [
"bonds",
"tubes",
"arms",
"connections"
] | A |
What makes nobel gases unreactive? | sciq-00751 | [
"chemical reaction",
"fusion",
"magnetism",
"its electon configuration"
] | D |
Which joint allows humans to sit, stand, and pivot? | sciq-00752 | [
"knee",
"ankle",
"hip",
"femur"
] | A |
What type of power is generated by splitting uranium atoms? | sciq-00753 | [
"fossil fuel power",
"solar power",
"wind power",
"nuclear power"
] | D |
At any given temperature, not all of the particles of a sample of matter have the same energy of what type? | sciq-00754 | [
"kinetic",
"dark matter",
"seismic",
"magnetic"
] | A |
Individual particles of a substance in what state are in fixed positions with respect to each other because there is not enough thermal energy to overcome the intermolecular interactions between the particles? | sciq-00755 | [
"undivided",
"stable",
"solid",
"structured"
] | C |
What kind of feeders are sponges? | sciq-00756 | [
"surface feeders",
"bottom feeders",
"filter feeders",
"primary feeders"
] | C |
It is the variety of what that gives rise to the incredible variation of protein structure and function? | sciq-00757 | [
"organism acid side chains",
"spastic acid side chains",
"amino acid side chains",
"clump acid side chains"
] | C |
What do plant viruses have that protect their cells? | sciq-00758 | [
"inner wall",
"cell wall",
"nuclei wall",
"proteins wall"
] | B |
What type of isotope can be used to treat diseases like cancer? | sciq-00759 | [
"positive isotope",
"radioactive isotopes",
"negative isotope",
"radiodecaying isotope"
] | B |
What helps by releasing chemicals that control other lymphocytes? | sciq-00760 | [
"interloper t cells",
"controller t cells",
"helper t cells",
"discharger t cells"
] | C |
What is the density needed to just halt universal expansion called? | sciq-00761 | [
"instance density",
"critical density",
"stop density",
"allow density"
] | B |
In a nuclear power plant, what typically spins in order to produce electricity? | sciq-00762 | [
"pipe",
"turbine",
"grid",
"generator"
] | B |
How do roots and stems grow? | sciq-00763 | [
"evenly",
"logically",
"indeterminately",
"orderly"
] | C |
What are organic molecules that consist of carbon, hydrogen, and oxygen called? | sciq-00764 | [
"electrolytes",
"carbohydrates",
"amino acids",
"proteins"
] | B |
The diploid sporophyte produces haploid spores by what process? | sciq-00765 | [
"mitosis",
"binary fission",
"electrolysis",
"meiosis"
] | D |
What type of covalent bond is a covalent bond in which the bonding electrons are shared equally between the two atoms? | sciq-00766 | [
"polar",
"ionic",
"nonpolar",
"acidic"
] | C |
What forms a barrier between the cytoplasm and the environment outside the cell? | sciq-00767 | [
"the splatter membrane",
"the cellular membrane",
"the plasma membrane",
"the mitochondria membrane"
] | C |
Sponges are part of what phylum, which gets its name from the latin for "having pores"? | sciq-00768 | [
"annelida",
"porifera",
"chordata",
"mammalia"
] | B |
Comets that have periods of 200 years or less are knows as what-period comets? | sciq-00769 | [
"fast",
"old",
"short",
"long"
] | C |
The integumentary system helps regulate body temperature through its tight association with what system involved in our fight-or-flight responses? | sciq-00770 | [
"autonomic nervous system",
"circulatory system",
"sympathetic nervous system",
"endocrine system"
] | C |
What in the air allows us to hear sound? | sciq-00771 | [
"gases",
"rain",
"wind",
"water"
] | A |
What do you call the process in which a community changes through time? | sciq-00772 | [
"ecological succession",
"spontaneous mutation",
"natural selection",
"continuous succession"
] | A |
What is the maximum horizontal distance traveled by a projectile? | sciq-00773 | [
"range",
"span",
"length",
"radius"
] | A |
The axon is a long extension of the cell body that transmits what to other cells? | sciq-00774 | [
"synthesis impulses",
"calcium impulses",
"nerve impulses",
"blood impulses"
] | C |
Fungi are now classified as their own kingdom. what kingdom were they previously a part of? | sciq-00775 | [
"animals",
"protozoa",
"plants",
"arthropods"
] | C |
What is the term for small streams? | sciq-00776 | [
"canals",
"tributaries",
"wetlands",
"rivers"
] | B |
A comparison of the human arm with a bat's wing demonstrates what principle of biology? | sciq-00777 | [
"motion follows function",
"form follows function",
"attachment follows function",
"size follows function"
] | B |
What converters are used on motor vehicles to break down pollutants in exhaust to non-toxic compounds? | sciq-00778 | [
"solvent converters",
"outer converters",
"back converters",
"catalytic converters"
] | D |
If a substance does not release molecules into the air from its surface, it will not have what? | sciq-00779 | [
"color",
"temperature",
"smell",
"taste"
] | C |
What is the term for when deep ocean water rises to the surface? | sciq-00780 | [
"percolating",
"tsunami",
"upwelling",
"tidal waves"
] | C |
What are collisions between gas particles and container walls called? | sciq-00781 | [
"elastic collisions",
"kinetic theory",
"utilize collisions",
"tubes collisions"
] | A |
Cooling a mixture of equal parts nitric oxide and nitrogen dioxide to −21 °c produces what? | sciq-00782 | [
"dinitrogen trioxide",
"carbon trioxide",
"nitrate trioxide",
"chloride trioxide"
] | A |
What is the most important element to life? | sciq-00783 | [
"calcium",
"nitrogen",
"carbon",
"hydrogen"
] | C |
Each female of a particular species can produce millions of these per year? | sciq-00784 | [
"seeds",
"sperms",
"eggs",
"fetuses"
] | C |
The cephalic phase (reflex phase) of gastric secretion, which is relatively brief, takes place before food enters where? | sciq-00785 | [
"skin",
"stomach",
"Head",
"respiratory"
] | B |
What part of the earth does a compass needle align with? | sciq-00786 | [
"gravitational field",
"geospatial field",
"molecular field",
"magnetic field"
] | D |
Parasitic chelicerates like ticks and mites have evolved what? | sciq-00787 | [
"aileron apparatuses",
"tunicates apparatuses",
"licking apparatuses",
"bloodsucking apparatuses"
] | D |
Where do two tributaries come together at? | sciq-00788 | [
"snake",
"axis",
"confluence",
"stream"
] | C |
The force exerted by the atmosphere on the earth’s surface can be measured with what instrument? | sciq-00789 | [
"Geiger counter",
"mass spectrometer",
"anemometer",
"barometer"
] | D |
What are the substances that the body needs for energy, building materials, and control of body processes? | sciq-00790 | [
"tissues",
"liquids",
"nutrients",
"gases"
] | C |
What term describes the energy required to increase the surface area of a liquid by a given amount? | sciq-00791 | [
"elastic collision",
"viscosity",
"surface tension",
"boiling point"
] | C |
What is the term for the process of turning sunlight's energy into food? | sciq-00792 | [
"atherosclerosis",
"light compression",
"photosynthesis",
"glycolysis"
] | C |
Because water expands when it freezes, what property of water is lower when it is in a solid state than a liquid? | sciq-00793 | [
"density",
"mass",
"salinity",
"volume"
] | A |
What is released during dehydration synthesis? | sciq-00794 | [
"photons",
"helium",
"air",
"water"
] | D |
What do plant cells have in addition to a cell wall and a large central vacuole? | sciq-00795 | [
"chromosomes",
"gastropods",
"plastids",
"DNA"
] | C |
What is the only animal group that evolved to live on land and then back to live in the ocean? | sciq-00796 | [
"birds",
"reptiles",
"mammals",
"amphibians"
] | C |
What has large crystals because the magma began to cool slowly, then erupted? | sciq-00797 | [
"porphyry",
"crystalline",
"lava",
"chalky"
] | A |
What must be regulated in order to maintain carbon dioxide levels and proper blood ph? | sciq-00798 | [
"Heart rate",
"oxygen rate",
"breathing rate",
"blood toxin levels"
] | C |
Cells may enter a period of rest known as what? | sciq-00799 | [
"stationary phase",
"interkinesis",
"anaphase",
"respiration"
] | B |
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