id string | question string | choices list | answer_key string | source string |
|---|---|---|---|---|
0b5015fb-a14e-48ad-9aa6-bbb8ef3070d7 | As a diver descends, the increase in pressure causes the body’s air pockets in the ears and lungs to do what? | [
"blow up",
"compress",
"expand",
"heat up"
] | compress | sciq |
8cf31d00-0e82-4aff-abb9-1c6d2128313d | Many deleterious alleles have such severe effects that a homozygous embryo spontaneously aborts long before what? | [
"LIfe",
"baby",
"birth",
"couple"
] | birth | sciq |
75328517-bcff-4a54-9507-0ce0cfcdb15e | What kind of reaction, in general, keeps stars shining? | [
"magnetism",
"fusion",
"fission",
"evolution"
] | fusion | sciq |
d61e6256-7e64-4054-95ab-b2dbafe9f816 | What is the most important factor determining soil type? | [
"plant life",
"climate",
"ecology",
"landscape"
] | climate | sciq |
151a7cab-8633-45b4-a674-c45dbc864385 | What are the structural and functional units of the kidney called? | [
"Ions",
"caldrons",
"aeons",
"nephrons"
] | nephrons | sciq |
9c25edce-d54e-40ac-a38c-63439bc40fab | What structure, containing many internal membranes, is the site of photosynthesis? | [
"genome",
"chloroplast",
"mitochondria",
"ribosome"
] | chloroplast | sciq |
8fc23c07-b821-485a-9a90-cc5acb60d9e5 | During the day, what type of energy is transferred from the air over the land to the air over the water? | [
"nuclear",
"atmospheric",
"magnetic",
"thermal"
] | thermal | sciq |
2e0c9c5e-eab9-4746-b01e-a186ee8181c0 | Which nerve carries electrical signals from the rods and cones to the brain? | [
"axon",
"optic",
"neurotransmitter",
"auditory"
] | optic | sciq |
70339e88-6ec4-45fd-90b5-787f9b633bb5 | What is the only thing that can change an asteroid? | [
"a situation",
"a wind",
"a collision",
"weather"
] | a collision | sciq |
33224a95-3b52-4dbb-805c-45b4dfc10e49 | Radon is inert and generally unreactive because it is which kind of gas? | [
"ignoble gas",
"noble gas",
"transitive gas",
"ideal gas"
] | noble gas | sciq |
3dc74bd5-480e-4d7f-9b89-4f726a0aa9cc | What are the two ways animals can manage their internal environment? | [
"sweating or sleeping",
"adaptation or mutation",
"digestion or excretion",
"regulating or conforming"
] | regulating or conforming | sciq |
5681f29b-837c-4329-aee8-d210d99b5715 | What may the jointed appendages of arthropods be used for? | [
"walking",
"crawling",
"jumping",
"digging"
] | walking | sciq |
7084b17a-95cb-4510-bcd0-eb4174ac5c33 | A sperm cell and an egg cell fuse to become what? | [
"fetus",
"embryo",
"unfertilized egg",
"fertilized egg"
] | fertilized egg | sciq |
c4f93895-ec9c-4fe1-a5c6-145fe922661a | The muscles in arteries and veins that are largely responsible for regulation of blood pressure are known as what type? | [
"opposing muscles",
"smooth muscles",
"vascular muscles",
"elongated muscles"
] | smooth muscles | sciq |
0cc37431-a92e-46ed-8fa5-8b3820b944a7 | An inversion may result when what kind of mass moves over cold ground? | [
"warm air",
"cold water",
"warm water",
"cold air"
] | warm air | sciq |
87d52324-919c-4b55-ba64-6eed75139b6f | The eardrum is part of what part of the ear? | [
"main",
"thin",
"inner",
"outer"
] | outer | sciq |
f0901d41-e754-457d-9ae9-2f6eb769bc51 | What is never lost and just changes forms? | [
"fuel",
"energy",
"food",
"life"
] | energy | sciq |
976233fe-97d5-4fc6-87d0-cbcbe20b103e | What is the term for a mixture that varies in its composition? | [
"amorphous",
"heterogeneous",
"mixed composition",
"homogeneous"
] | heterogeneous | sciq |
3d1d11bc-8c1e-4f8a-a490-ecad3d42572b | What are the "building blocks" of proteins? | [
"amino acids",
"nucleic acids",
"hormones",
"enzymes"
] | amino acids | sciq |
de01b366-6ab9-486a-ac53-a07f8bd7c191 | What is responsible for our sense of balance? | [
"our limbs",
"our eyes",
"our ears",
"our feet"
] | our ears | sciq |
d9f48467-df0a-415b-be57-8b45e87eedae | What technology do scientists use to create models? | [
"computers",
"patterns",
"microscopes",
"calculators"
] | computers | sciq |
683d9ec4-3843-43ed-a39f-e6f77b70b391 | What essential molecules can be harmful if ingested in large amounts, especially if they contain saturated fatty acids from animal foods? | [
"lipids",
"helium",
"hydrogen",
"oxygen"
] | lipids | sciq |
2b4749a6-a329-47fa-b89d-42c84ca76555 | What are two ways cnidarians are able to reproduce? | [
"spawning and sexual",
"asexually and sexually",
"internally and externally",
"mitosis and meiosis"
] | asexually and sexually | sciq |
299510d7-4b35-480f-94ae-c0d74335e240 | In what human organ system would you find live e. coli bacteria? | [
"circulatory system",
"digestive system",
"respiratory system",
"skeletal system"
] | digestive system | sciq |
5378b79b-71f0-4164-a94b-88817a8bae85 | What carries blood away from the heart? | [
"veins",
"arteries",
"pores",
"capillaries"
] | arteries | sciq |
01726068-e496-4134-8c4e-9c774e2ba532 | What is the most important characteristic of a homogeneous mixture? | [
"uniform composition throughout",
"nonreactive",
"high density",
"very reactive"
] | uniform composition throughout | sciq |
00949c1d-aa05-4090-a44c-e3971226fd8a | The domain geometry for a molecule with four electron pairs is called what? | [
"bent",
"tetrahedral",
"trigonal planar",
"linear"
] | tetrahedral | sciq |
ef3c2b7b-c074-4c58-9d25-655354c0215a | What is the gel-like material between the cell membrane and the nucleus called? | [
"cytoplasm",
"vacuole",
"ribosome",
"mucus"
] | cytoplasm | sciq |
48657ea4-76e6-4c42-aa18-fcf0424cd9d3 | Like mammals and birds, and unlike other reptiles, crocodiles have how many chambers in their heart? | [
"two",
"one",
"six",
"four"
] | four | sciq |
2d7b8be0-0ca9-4c7f-bc33-6c40aee90f3c | What is the phenomenon in which light and sound waves become circular at the point source of a barrier? | [
"refraction",
"sonic wave",
"reflection",
"diffraction"
] | diffraction | sciq |
511635b4-afdd-4b00-bfc4-96b86f9f020e | What is the name of the relatively large gland in the neck that secretes thyroxin? | [
"Pituitary",
"Pancreas",
"thyroid",
"Thyroid"
] | thyroid | sciq |
d1eaad9a-e970-40df-81f9-28951345137f | Amplification that occurs in which cells often requires signal transduction pathways involving second messengers? | [
"axons",
"optic nerves",
"sensory receptor",
"catayst cells"
] | sensory receptor | sciq |
a26be214-8dcf-4f43-bf6a-c04b02c05d62 | As adults, amphibians are completely _______, meaning they feed on other animals. | [
"carnivorous",
"herbivorous",
"monogamous",
"omnivorous"
] | carnivorous | sciq |
79a330bd-beff-49f7-97fd-682a9b63c03e | Approximately how many billion years ago did our solar system begin? | [
"five billion",
"nine billion",
"three billion",
"four billion"
] | five billion | sciq |
a1eb6726-082c-4e01-be2a-03036d601f3a | A type of what organism causes ergot, a disease that impacts crops directly and has more devastating effects on animals? | [
"bacteria",
"insects",
"fungus",
"virus"
] | fungus | sciq |
2381f3b0-32ca-4f36-a0b8-c3000ef46d57 | Plant-like protists are commonly called what? | [
"algae",
"sponge",
"fungus",
"seaweed"
] | algae | sciq |
6d4518dc-7621-4147-8d9f-caf054bfb10a | Which cell gives rise to all cells of the human body? | [
"signaler stem cell",
"schwann stem cell",
"omnipoten stem cell",
"totipotent stem cell"
] | totipotent stem cell | sciq |
bf846ccf-1c4d-4728-8deb-36805df16f2c | What term describes the long tube that connects the mouth to the anus? | [
"metabolism tract",
"gastrointestinal tract",
"esophagus tract",
"lungs tract"
] | gastrointestinal tract | sciq |
2566db1f-37c6-47c4-b1ae-b04a09221ebe | In some ways, a collection of gas molecules represents the simplest form of what? | [
"matter",
"energy",
"protein",
"life"
] | matter | sciq |
c70bdda0-92a3-43f9-a0fe-85e8b6207779 | Are vesicles larger or smaller than vacuoles? | [
"smaller",
"larger",
"wider",
"narrower"
] | smaller | sciq |
32d27245-a91b-4566-ab8a-71ace87188b3 | The duodenum is the first and the shortest part of what, and is where most chemical digestion takes place? | [
"rectum",
"large intestine",
"small intestine",
"stomach"
] | small intestine | sciq |
bd992a11-e1d1-4903-b08c-a08379b9914d | Which system consists of all the bones of the body? | [
"nervous system",
"circulatory system",
"digestive system",
"skeletal system"
] | skeletal system | sciq |
fda26d6b-d032-42d3-afb1-2cfa4c3cea6b | What is rusting an example of? | [
"radiation change",
"contamination change",
"Decomposition",
"chemical change"
] | chemical change | sciq |
0e78ec67-faf1-4703-9694-2fbef091d5b5 | What molecule consists of two atoms of hydrogen and one atom of oxygen? | [
"water",
"air",
"carbon monoxide",
"hydrogen peroxide"
] | water | sciq |
0edc7480-3ab3-4e99-98fd-b6b607ae18ed | All compounds, whether ionic or covalent, must be what? | [
"organic neutral",
"electrically neutral",
"metallic neutral",
"abnormal neutral"
] | electrically neutral | sciq |
b5689c09-1752-4953-8f5e-805601c24538 | Which is the most common sti (sexually transmitted infection) in the united states? | [
"giardia",
"chlamydia",
"syphilis",
"AIDS"
] | chlamydia | sciq |
028c0695-2d8b-4dc6-a2e6-affe29cf6ab5 | What do all chemical reactions need to get started? | [
"activation energy",
"kinetic energy",
"potential energy",
"expression energy"
] | activation energy | sciq |
860eaaba-d5eb-4216-8248-0c393189739f | What organ does asthma periodically cause to narrow? | [
"ovaries",
"liver",
"lungs",
"intestines"
] | lungs | sciq |
a244429b-4089-4fcc-8e55-c704c2aff77f | Silver, gold, and copper all conduct what very well? | [
"microwaves",
"electricity",
"sound",
"light"
] | electricity | sciq |
dce7027a-f432-4caa-9e15-fb2a39d189f9 | Pakicetus and rodhocetus are considered to be ancestors of modern what? | [
"rodents",
"hominins",
"primates",
"whales"
] | whales | sciq |
a1c2f074-cb7f-4be0-80ca-9d3779eee36d | Chemical and physical changes in a system may be accompanied by an increase or a decrease in the disorder of the system, corresponding to an increase or decrease in what? | [
"volume",
"entropy",
"enthalpy",
"vibration"
] | entropy | sciq |
37e9ea3b-c6b6-4b4a-aed0-d51f3f9ebec5 | What is the only way to completely avoid stis? | [
"oral sex",
"cover your mouth",
"avoid sexual contact",
"contraceptive use"
] | avoid sexual contact | sciq |
41e63f8d-7556-4998-b6d0-03c212d06398 | What is an ion that is in common to both salts in a solution? | [
"native ion",
"strong ion",
"regular ion",
"common ion"
] | common ion | sciq |
d5879f19-57db-4985-b230-f218743fd37a | Prokaryotes and the nitrogen cycle nitrogen is a very important element for life because it is part of proteins and this? | [
"nucleic acids",
"molecules",
"nerve cells",
"nuclear forces"
] | nucleic acids | sciq |
81e8a2dd-6796-4338-a432-7eb673b72742 | What property is a measure of the average kinetic energy of molecules? | [
"temperature",
"mass",
"density",
"velocity"
] | temperature | sciq |
af7475a4-0c0e-4cb9-9817-1f02b322fb9b | A measure of the disorder of a system is called its what? | [
"lose",
"entropy",
"function",
"spectral"
] | entropy | sciq |
0ac41ec3-3fd9-4548-9fc1-ecabe0642956 | What influence does the horizontal motion of a projectile have on free fall? | [
"increase acceleration",
"none",
"decrease acceleration",
"vertical"
] | none | sciq |
c3c73c61-576b-43c9-8ef7-e7c0bfa501cd | Larger animals expend more of what to achieve locomotion? | [
"distance",
"neurons",
"energy",
"time"
] | energy | sciq |
eb4450bc-f67f-48b2-8aa6-6fc2e6200444 | Subshells are subdivisions of what groupings of electrons that can be found surrounding atoms? | [
"isotopes",
"orbitals",
"globals",
"analogous"
] | orbitals | sciq |
8e7d6e57-4c5d-4eea-8cfc-16e4506dc4fa | The number of moles of solute in 1 kg of solvent is defined as what? | [
"molarity",
"singularity",
"kilocalorie",
"pollenation"
] | molarity | sciq |
09f276b9-6ee2-4ed6-bc5b-bc292b3872bb | What is the name for the pores in leaves that allow a plant to retain water or exchange gases? | [
"chloroplasts",
"rhizomes",
"neurons",
"stomata"
] | stomata | sciq |
edcc7bc3-96ce-42cd-9f16-21f865cdb36d | What is part of a cycle that holds an element or water for a long period of time called? | [
"a holding tank",
"a reservoir",
"a ditch",
"homeostasis"
] | a reservoir | sciq |
c8f509c3-1b4c-43c6-b395-16579ef34091 | What theory states that all organisms are made up of one or more cells? | [
"the cell theory",
"the atomic theory",
"the molecular anatomy theory",
"the micro theory"
] | the cell theory | sciq |
299d9200-8c27-48ff-af83-1d790f80c3cf | What does rearrangements of chromosomes contribute to the emergence of? | [
"new species",
"fewer species",
"extinction",
"clones"
] | new species | sciq |
c46391a1-09b5-41c3-8895-559ed21fa055 | In the universe as a whole, what is the most common element? | [
"helium",
"hydrogen",
"carbon",
"oxygen"
] | hydrogen | sciq |
2a45fa68-2393-4bbe-9131-3ab6be122f2a | What are substances that cannot be broken down into simpler substances with different properties called? | [
"compounds",
"atoms",
"molecules",
"elements"
] | elements | sciq |
d4c0d958-90c9-404d-9d0e-16fd38ac742d | What gas, that is dissolved in solution, is used in carbonated beverages? | [
"carbon dioxide",
"phosphorus dioxide",
"carbon monoxide",
"hydrogen peroxide"
] | carbon dioxide | sciq |
b2695c5c-8062-4124-9e73-3bbaf0fa7cc0 | Fluoride ion is widely used in water supplies to help prevent what? | [
"bacteria",
"tooth decay",
"rust",
"chlorine taste"
] | tooth decay | sciq |
8c5c492e-9528-4526-83ec-64e1338b5545 | Amino acids are joined together to form a chain at what molecular structure? | [
"chloroplasts",
"ribosomes",
"DNA",
"chromosomes"
] | ribosomes | sciq |
9e8ce632-64d1-45c7-af60-e3a71edfbe09 | What is the name of the science that studies matter and the changes material substances undergo? | [
"geology",
"biology",
"chemistry",
"physics"
] | chemistry | sciq |
b54e00a7-cc30-4dd6-ad8d-62691b0005d7 | Which process changes rocks by heat and pressure? | [
"weathering",
"metamorphism",
"sediments",
"Changes"
] | metamorphism | sciq |
fefc10af-ecdd-402b-9ca4-6738f93f3f6a | What is defined as an antigen that causes an allergy? | [
"a disinfectant",
"a pollutant",
"an allergen",
"an expectorant"
] | an allergen | sciq |
835b4421-a102-436b-a11e-c9bfe2677e56 | What can be linked together to form disaccharides or polysaccharides? | [
"carbohydrates",
"nitrates",
"amino acids",
"monosaccharides"
] | monosaccharides | sciq |
60f8acd0-b762-4dbe-b247-836df1333838 | What were the first living things to evolve on earth? | [
"eukaryotes",
"carbon",
"DNA",
"prokaryotes"
] | prokaryotes | sciq |
ca2b3335-04ab-473d-bc39-3e50bb010bfe | All members of a species living together form a what? | [
"group",
"population",
"family",
"organization"
] | population | sciq |
f0870047-d58f-4141-85ed-13d2cf0afada | What type of disturbance do even dominant plants depend on in many biomes? | [
"seismic force",
"mass extinction",
"radiation",
"periodic"
] | periodic | sciq |
de2e4437-8540-4343-a2fc-7c0889fa2228 | What type of behaviors are triggered by pheromones in moths? | [
"exhibit",
"courtship",
"peculiar",
"illuminating"
] | courtship | sciq |
365b614f-db8f-4a43-95ce-5f678c2695e4 | What do organisms use to store energy? | [
"lipids",
"metabolytes",
"proteins",
"tissues"
] | lipids | sciq |
b5df1422-34f6-43de-aafa-4a3d276ae4d4 | The scientific practice of classifying organisms is also known as what? | [
"taxonomy",
"taxodermy",
"methodology",
"terminology"
] | taxonomy | sciq |
f3ad51c5-003a-4d81-93f2-1e1d18a697ae | What is the type of cell division that produces gametes? | [
"budding",
"electrolysis",
"mitosis",
"meiosis"
] | meiosis | sciq |
ca0e2565-8490-482a-a37a-83ac18a23ffe | The force applied to an object is called? | [
"gravity",
"strain",
"torque",
"stress"
] | stress | sciq |
38555b8a-80a9-4f5b-a8ff-1b05f900d647 | What is the largest mineral group, comprising over 90% of earth's crust? | [
"silicates",
"carbonates",
"oxides",
"soils"
] | silicates | sciq |
6fb9dae6-10e6-4597-961f-2a8d293ced52 | Sound navigation and ranging is an acronym for what, which is used to locate underwater objects such as submarines? | [
"sonar",
"sound transmission",
"radar",
"GPS"
] | sonar | sciq |
2199a8fb-ec2d-4580-8593-fb79cf89a2db | What is the term for the difference in elevation between two contour lines? | [
"contour interval",
"design interval",
"mapping interval",
"height"
] | contour interval | sciq |
c857a957-02f0-405d-a1d7-c54f8fc6215c | The same reaction regenerates pyruvate, which is transported to which cells? | [
"mesophyll",
"skin",
"symbionts",
"outermost"
] | mesophyll | sciq |
5e21ffc1-9928-45d3-9fe5-9bcf590a0862 | What large carboxylic acid with three ionizable hydrogen atoms gives some fruits a sour or tart flavor? | [
"beryllium acid",
"ammonia acid",
"citric acid",
"hydrochloric acid"
] | citric acid | sciq |
0ac936aa-c291-4c78-8b2f-67fa4b3e39e5 | How does sap get to the tops of tall trees? | [
"through suction power",
"via Coriolis forces",
"through negative pressure",
"through pressure from below"
] | through negative pressure | sciq |
de9c52a9-7d23-4b99-9662-8d88ddd6bd0d | Each megasporangium has a single functional one of what? | [
"antispore",
"megaspore",
"cocklebur",
"spicule"
] | megaspore | sciq |
38323d77-2667-4d37-a495-ba4d97d65546 | Somatosensation refers to what of the five senses? | [
"balance",
"touch",
"sight",
"thought"
] | touch | sciq |
d1cdd22b-cb6e-4d38-bdb4-ac2f49791c8e | Respiratory distress syndrome results from insufficient production of what? | [
"carbon dioxide",
"alveoli",
"pulmonary surfactant",
"lung tissue"
] | pulmonary surfactant | sciq |
1f50ecf5-4ac0-4548-869b-aa6bee18fbe5 | Redox reactions can always be recognized by a change in what number of two of the atoms in the reaction? | [
"oxidation",
"fermentation",
"oxygen",
"precipitation"
] | oxidation | sciq |
a6d9b39c-3ae3-4f0a-a407-e1c7061cdc52 | In humans, the anus is attached to what kind of intestine? | [
"small",
"huge",
"internal",
"large"
] | large | sciq |
d2eaecae-6832-4128-b460-9ed96281fd52 | What does interspecific competition between species often lead to? | [
"evolution",
"symbiosis",
"immigration",
"extinction"
] | extinction | sciq |
8ef989e6-108d-4d07-ac48-1fcfc6f59325 | Radioactive decay can give off energy and what else? | [
"ions",
"atoms",
"particles",
"light"
] | particles | sciq |
6caeadbb-2bf0-4b65-a643-abf5cf27dd51 | What is the condition in which distant objects are seen clearly, but nearby objects appear blurry? | [
"gleam , or hyperopia",
"synthesise , or hyperopia",
"farsightedness, or hyperopia",
"nearsightedness or hyperopia"
] | farsightedness, or hyperopia | sciq |
191f8866-df07-43a3-a526-0fdda72f05d8 | What novelties can also arise when structures that originally played one role gradually acquire a different one? | [
"reproduction",
"evolutionary",
"interactions",
"mutation"
] | evolutionary | sciq |
07d2c367-5f10-408f-8ab1-2ff4a2879628 | What is a gap in rock layers called? | [
"an unconformity",
"a crevice",
"a mutation",
"an anomaly"
] | an unconformity | sciq |
fa88c6c5-5d6e-4fbc-9ed1-672a40a2186c | Bacteria are often used to make cheese from what? | [
"water",
"meat",
"milk",
"egg"
] | milk | sciq |
f36a130c-3def-47b0-a90f-600f9418b3c8 | Why are atoms of metals good conductors of electricity? | [
"hold on to electrons",
"conserve heat",
"give up electrons",
"break into smaller parts"
] | give up electrons | sciq |
d2f3f905-582c-4268-a4be-dfb9212c2b79 | What is the basic unit of an organism called? | [
"cell",
"electron",
"singularity",
"particle"
] | cell | sciq |
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