id
string
question
string
choices
list
answer_key
string
source
string
950dbf39-fc83-4634-914e-bd2c290c4875
What is the term for the remains or traces of living organisms?
[ "fossils", "deposits", "remains", "ethings" ]
fossils
sciq
73673dc9-c50c-48a5-8b95-4cfe9f274042
What type of disease is caused by pathogens?
[ "nervous diseases", "viral diseases", "infectious diseases", "autoimmune diseases" ]
infectious diseases
sciq
cc3944c2-b761-4058-bf5d-e536ddcb1d00
Worms grow to adult size without going through what stage?
[ "larval", "growth", "development", "egg" ]
larval
sciq
9da6657c-feb0-4119-a4b5-481c79cc34c8
What serves as a first responder to pathogenic threats that bypass natural physical and chemical barriers of the body?
[ "super immune system", "immense immune system", "innate immune system", "cells immune system" ]
innate immune system
sciq
bd4c98c4-d339-4ea9-b0ba-249c7ca9a4c7
Of the three basic types of emissions, which has the highest penetrating power?
[ "ultraviolet radiation", "gamma radiation", "chemical radiation", "fluid radiation" ]
gamma radiation
sciq
27a6ce53-bba8-4950-b1b0-d25175f9d0b7
True animals are divided into those with radial versus bilateral styles of what?
[ "molecular", "magnetic", "symmetry", "attracted" ]
symmetry
sciq
d14dbdf6-0566-4390-98fc-5805727d90fd
While still an early fetus, what is the skeleton made of?
[ "membrane", "ligament", "gel", "cartilage" ]
cartilage
sciq
c4b340c4-58e0-4007-99a6-520d60263811
What forms the pathway of water and nutrients from roots to leaves and flower?
[ "the stem", "the stamen", "the stigma", "the pistil" ]
the stem
sciq
5c19ead6-99d7-428b-9657-13d720b3139c
What proteins span the entire plasma membrane?
[ "transmembrane", "amino acids", "cytoplasm", "sequence" ]
transmembrane
sciq
e66a8e15-eca3-4074-a48d-f474072a74ac
Why is blue cheese blue?
[ "bacteria", "artificial dye", "fungus", "fermentation" ]
fungus
sciq
c3600c39-c3ab-431f-9915-ab9d92ff2220
What type of joint are ball-and-socket, hinge, and pivot examples of?
[ "movable", "fixed", "retractable", "artificial" ]
movable
sciq
bd92a342-ab33-469c-9857-9056618d95c2
Are valence electrons attracted more or less strongly when they are farther from the nucleus?
[ "more strongly", "less strongly", "equally", "differently" ]
less strongly
sciq
b3671824-79f7-48be-903e-4caa9a18b255
What do we call the predictable distribution of molecular speeds found in gas of many molecules?
[ "mitchell - boltzmann distribution​", "maxwell-boltzmann distribution", "burns - boltzmann distribution", "kemp - boltzmann distribution" ]
maxwell-boltzmann distribution
sciq
f1da0649-00f3-43ce-ac7b-4e2766696bb9
Name the simple sugar that is a component of starch.
[ "Fructose", "glucose", "insulin", "Splenda" ]
glucose
sciq
1462f943-b842-4d87-8c49-3706d4746e34
What do vertebrates have which invertebrates do not?
[ "backbones", "fangs", "tails", "appendages" ]
backbones
sciq
3e662306-77ca-4484-b806-e910faa343e2
Occuring throughout the lifespan of the organism, what stages proceed in a certain order?
[ "yearly stages", "life effectiveness stages", "genetic stages", "life cycle stages" ]
life cycle stages
sciq
55fb3664-3636-4d10-829d-8a037ae2cdbd
The fetus is connected to what by a tube called the umbilical cord?
[ "placenta", "Stomach", "Intestines", "Fallopian tube" ]
placenta
sciq
8361e5c0-a224-466a-b8f9-cd53f0fc0cec
What are most fresh fruits, vegetables, whole grains rich in?
[ "cholesterol", "cellulose", "magnesium", "calcium" ]
cellulose
sciq
9f9dc49c-67fa-4fad-8981-0be6bef8a0b4
What term tells you how quickly the angle changes and can occur in either clockwise or counterclockwise directions?
[ "emit velocity", "shift velocity", "angular velocity", "turning velocity" ]
angular velocity
sciq
720e2a87-6fa0-4158-b2ac-e31554e3801d
What term is used to describe how fast a chemical reaction occurs?
[ "velocity", "response time", "catalysis", "reaction rate" ]
reaction rate
sciq
b6ef28f8-1aa2-4328-a75c-921fcc691eb0
What is the term for protists that produce spores, such as the toxoplasm?
[ "spermatozoa", "protozoans", "newborns", "sporozoans" ]
sporozoans
sciq
ab3910ce-0d21-4c8f-ba93-ddcbaddf5e5b
Why does neptune's appearance change?
[ "the seasons", "turbulent atmosphere", "the speed of rotation", "the changing orbit" ]
turbulent atmosphere
sciq
d657ef79-4b88-4f26-99b6-6b4a449f46f2
Changing levels of what substances partly explain emotional ups and downs in teens?
[ "acids", "nutrients", "hormones", "enzymes" ]
hormones
sciq
b1a4e9e7-3988-4c00-be05-687c226be431
What term refers to larger evolutionary changes that result in new species?
[ "macroevolution", "Potential evolution", "substantial evolution", "Microevolution" ]
macroevolution
sciq
48604c92-6a4a-4248-93f1-b62b6e60d546
What do you call a lens that causes the light rays to bend away from its axis?
[ "axilens", "optical lens", "diverging lens", "converging lens" ]
diverging lens
sciq
0899c4ed-dc3a-43ae-977a-93f1a3ac97b6
Diffusion can occur across a semipermeable membrane, such as the cell membrane, as long as a what exists?
[ "concentration gradient", "differential", "polarity", "parity" ]
concentration gradient
sciq
9ad6f3a0-70cc-4fe6-a6bf-658a7f9b8db5
Scientists use what scale to illustrate the order in which events on earth have happened?
[ "fossil record", "geologic time scale", "ecological succession", "cataclysmic time scale" ]
geologic time scale
sciq
5dcc1e50-8420-451d-b523-ec4d49056209
What will happen if the gas particles inside an inflated balloon suddenly stop moving?
[ "balloon falls", "balloon deflates", "balloon bursts", "balloon inflates" ]
balloon deflates
sciq
449150e5-7465-43f5-a3fe-7024db522a34
What are the major sites of gibberellin production?
[ "flower and fruit", "young roots and leaves", "soil and leaves", "stem and roots" ]
young roots and leaves
sciq
e366220e-bc2a-42df-bd1b-4745f766c9f0
What is required for interconversion between the two forms of an isomeric pair?
[ "breaking and reforming", "fixing and reforming", "couple and reforming", "turn and reforming" ]
breaking and reforming
sciq
8039d5ab-c72d-4840-bed3-7858df1eada2
Bacteria reproduce through what process, where the chromosome copies itself, forming two genetically identical copies?
[ "multiple fission", "nuclear fission", "residual fission", "binary fission" ]
binary fission
sciq
1dd62090-3367-4e54-9fa1-1c6727839661
Water molecules are polar, so they form what type of bonds?
[ "helium", "hydrogen", "carbon", "oxygen" ]
hydrogen
sciq
12e86984-2842-435b-a2a7-08e02e068bc0
The cecum is the first part of what structure, where wastes in a liquid state enter from the small intestine?
[ "esophagus", "appendix", "large intestine", "duodenum" ]
large intestine
sciq
e5ab91ae-3852-4cd6-9807-591e4271c126
What are the "levels" in a food chain or web called?
[ "root", "trophic", "gauges", "parts" ]
trophic
sciq
3c8a099d-889a-4671-93ac-f668a2e4ea5c
Are bones considered living or dead tissues?
[ "living", "dead", "decomposing", "decaying" ]
living
sciq
4c723bbf-5677-4dce-9224-a4065d3e6e73
What forms when water in the atmosphere condenses on dust particles suspended in the air?
[ "hail", "snow", "wind", "clouds" ]
clouds
sciq
aa40a2d9-4767-438d-8429-d46c44fb3199
What are the two types of fermentation?
[ "alcoholic and alchemical", "acetic and anhydrous", "lactic acid and alcoholic", "lactic acid and fermaldehyde" ]
lactic acid and alcoholic
sciq
31a8d043-3df4-480e-ace4-1a7f53584a04
Aging occurs as cells lose their ability to do what?
[ "build", "divide", "join", "grow" ]
divide
sciq
28a78294-b33c-4590-867d-27523e234e7a
What is it called when liquid water falls from the sky?
[ "precipitation", "water cycling", "erosion", "sedimentation" ]
precipitation
sciq
53c9e900-5d06-4fce-911e-01e759fd5673
Applying a pressure greater than the osmotic pressure of a solution will do what?
[ "normal osmosis", "ultrafiltration", "reverse osmosis", "osmosis" ]
reverse osmosis
sciq
3eb6f8f8-c075-4b44-a53d-36abb4d46f71
The molecule pictured above is thyroxine, a compound produced by which gland?
[ "kidney", "stomach", "gallbladder", "thyroid" ]
thyroid
sciq
c889bf10-d7de-4d6a-aaab-98e3733e6ddc
Birds generally practice what kind of relationship, with both parents helping to care for the young?
[ "carnivorous", "synonomous", "monogamous", "homologous" ]
monogamous
sciq
0003e555-a748-42f4-8516-0404fd17df64
Gravitropism ensures that roots grow into the soil and that shoots grow toward what?
[ "the north pole", "sunlight", "the south pole", "trees" ]
sunlight
sciq
9c11f78c-873a-4471-8f2d-25c10ac03941
What is the mass of one mole of any given substance?
[ "protons mass", "atomic mass", "molar mass", "solute mass" ]
molar mass
sciq
789f2b35-0908-4d15-a282-43074c242f51
The corona surrounds which major object in our solar system?
[ "Earth's moon", "the sun", "Neptune", "Jupiter" ]
the sun
sciq
c0a6fe2d-5a15-4467-b1b5-97589d66f5bf
Respiration that occurs in the cells is called?
[ "plasma respiration", "biological respiration", "cellular respiration", "electromagnetic respiration" ]
cellular respiration
sciq
fd637090-e15a-43c7-a146-9c0fd560fa0e
Metabolism is an emergent property of life that arises from orderly interactions between what?
[ "nutrients", "body systems", "tissues", "molecules" ]
molecules
sciq
a19d9cab-3ad6-4243-a82c-36c28459a927
During cellular respiration, carbons from the glucose molecule are changed back into what gas?
[ "carbon dioxide", "liquid dioxide", "carbon monoxide", "deformation dioxide" ]
carbon dioxide
sciq
3180813b-8b0b-4374-8082-c20f0017e9dd
How does the distance between galaxies change as the universe expands?
[ "it becomes irrelevant", "it increases", "it is unchanged", "it decreases" ]
it increases
sciq
500b603e-de51-4afd-a2f5-b9999a149335
Rainwater absorbs carbon dioxide (co 2 ) as it falls. the co 2 combines with water to form what?
[ "nitrate acid", "carbonic acid", "carbon monoxide", "methane gas" ]
carbonic acid
sciq
92e29f08-4e1c-48dc-8c6e-b2892c57d2a9
Most molecular compounds that have a mass similar to water are in what state of matter at room temperature?
[ "vapor", "liquid", "gas", "solid" ]
gas
sciq
c8577907-4884-4449-b578-164a7f96c075
What do you call the movement of molecules across a membrane without the input of energy?
[ "passive transport", "active transport", "obvious transport", "reactive transport" ]
passive transport
sciq
7fc7b222-6e40-430f-a8d5-bd1377604f6f
Opposite charges attract and like charges do what?
[ "nothing", "impede", "repulse", "rebound" ]
repulse
sciq
bbe95add-1c9a-4b4e-9b10-c4af77b0442c
What molecules are usually insoluble in water?
[ "acids", "ions", "polar", "non-polar" ]
non-polar
sciq
57009962-c01f-45d9-b080-7bdb94d6441e
What occurs when there is a sudden discharge of static electricity between a cloud and the ground?
[ "rain", "updraft", "lightning", "wind" ]
lightning
sciq
08aea47d-e7be-4ca4-9d3d-04017dc7ab25
If citrate accumulates in mitochondria, some of it passes into where and inhibits phosphofructokinase?
[ "Golgi apparatus", "epidermis", "pores", "cytosol" ]
cytosol
sciq
aa0caff5-c8e9-4d14-b577-81cd6dfbbd68
For most of a star’s life, hydrogen atoms fuse to form what?
[ "helium atoms", "ionic atoms", "gas atoms", "neon atoms" ]
helium atoms
sciq
c9dc3551-3029-4ecd-a55d-3ff64d16c468
What two ways do channels respond during membrane depolarization?
[ "independently and typically", "typically and sequentially", "sequentially and identically", "independently and sequentially" ]
independently and sequentially
sciq
d626d9d6-124a-4be8-93fd-5ca992f3c98f
What kind of compound, contained in coffee and alcohol, increases urine volume?
[ "additive", "anabolic", "diuretic", "acid" ]
diuretic
sciq
1ba18a5c-f96e-4ff8-af8f-ad893959aafc
In mammals what does the zona pellucida protect?
[ "fetus", "sperm", "egg", "testes" ]
egg
sciq
7645faf6-1ada-4755-8319-11e15a4041a1
What type of vertebrates control body temperature to just a limited extent from the outside by changing behavior?
[ "mimetic", "endothermic", "etheric", "ectothermic" ]
ectothermic
sciq
3e93c65c-223e-4eb7-91c1-1d379445397c
Worldwide, viruses seem to play a role in what percentage of the cases of human cancer?
[ "5%", "15%", "+.15 %", "20 %" ]
15%
sciq
58d8521b-b3ca-402a-a4f1-7adfcf860153
Elements are pure substances that make up what?
[ "some matter", "Objects", "Solids", "all matter" ]
all matter
sciq
0a425837-4dab-4b46-9849-4d8dd7c740c5
What reproductive part is stored in a plant's pollen?
[ "the gamete", "the mimic", "the sperm", "the egg" ]
the sperm
sciq
36652d86-0499-486c-b9f7-5258be28845f
Atoms of what element ultimately form in a red supergiant?
[ "coal", "gold", "iron", "steel" ]
iron
sciq
562848b6-a5ef-4e33-a648-e90e1cbeb3f4
What are the two types of fats?
[ "thick and thin", "saturated and unsaturated", "liquid and solid", "full and empty" ]
saturated and unsaturated
sciq
b21fa466-e5f6-4202-88e0-be89ccc83386
What structure consists of an outer layer of cells called the trophoblast and an inner cell mass called the embryoblast?
[ "nucleus", "cytoplasm", "cell wall", "blastocyst" ]
blastocyst
sciq
8a736078-8ee6-4eb3-a76d-e8244a1c6ffd
Metabolic pathways are a series of reactions catalyzed by multiple what?
[ "particles", "hormones", "enzymes", "vitamins" ]
enzymes
sciq
fb3837b9-af8f-4fbd-88db-e8c7e24dfd56
What causes eutrophication to occur?
[ "excess of decreased and other nutrients", "excess of fertilizers and other nutrients", "excess of carbonate and other nutrients", "excess of increased and other nutrients" ]
excess of fertilizers and other nutrients
sciq
edda26ab-a88f-4f82-9a56-280081cddccf
What do you call the separation of ions that occurs when a solid ionic compound dissolves?
[ "decomposition", "dissolution", "deformation", "dissociation" ]
dissociation
sciq
7e0512d0-18e1-4e51-ab0a-3bfb8e80afb3
What is light with wavelengths shorter than visible light called?
[ "radio waves", "ultraviolet light", "infrared light", "weathering light" ]
ultraviolet light
sciq
9db67ee0-8e31-452c-8ed0-3df8f560759d
How much distance can beta particles travel through air?
[ "inches", "density", "centimeters", "meter" ]
meter
sciq
5cbc4f6a-fe4f-47ae-b646-04726789b044
What is created when the warm air at the cold front rises and creates a low pressure cell, causing winds to rush into the low pressure?
[ "Tornado", "Hurricane", "rising air column", "Wind pressure" ]
rising air column
sciq
bd624273-986b-4370-b94c-29a5e38a213a
People with osteoporosis have an increase risk of what?
[ "cancer", "bone fractures", "weight loss", "muscle loss" ]
bone fractures
sciq
8132986b-29c3-4b1d-aa9b-22e95314beda
What is the main artery of the systematic circulation called?
[ "aorta", "femoral", "carotid", "subclavian" ]
aorta
sciq
27158be8-f130-44b3-a8fb-2124ee0ec0b8
The length that an object has travelled in one or multiple directions can also be called what?
[ "distance", "velocity", "range", "axis" ]
distance
sciq
f2ed5c31-9e64-4977-89f7-276a88dfd119
In animals, what process occurs only in germ cells, which are in the ovaries or testes?
[ "electrolysis", "mitosis", "reproduction", "meiosis" ]
meiosis
sciq
abdf787a-de64-4e82-9638-5374fd6f19d5
Which theory describes the benzene molecule and other planar aromatic hydrocarbon molecules as hexagonal rings of sp2-hybridized carbon atoms with the unhybridized p orbital of each carbon atom perpendicular to the plane of the ring?
[ "covalent bond theory", "valence bond theory", "hybrid orbital theory", "molecular orbital theory" ]
valence bond theory
sciq
60c5abfe-4082-4819-b364-4bb2435d26e3
What type of carbon dioxide levels have been rising for the past several decades?
[ "aqueous", "atmospheric", "magnetic", "subatomic" ]
atmospheric
sciq
d589a829-07bf-4afb-92d0-d637682fb96d
Freezing rain that falls from the sky is also called?
[ "hail", "fog", "sleet", "snowfall" ]
sleet
sciq
fa3ab8fa-da22-4909-90f2-f7a3315c3455
Do waves move faster when particles are close to each other or far away?
[ "open", "unaffected", "close", "far away" ]
close
sciq
523e2b9b-223d-46e7-b042-aa16a95fb0d7
Adult bees include workers, a queen and what other type?
[ "builders", "laborers", "soldiers", "drones" ]
drones
sciq
a392adfd-0965-4826-98c6-075d7b481e07
Name the law that determines as to which rock layers are younger or older than others.
[ "law of apposition", "law of superposition", "geologic theory", "law of gravity" ]
law of superposition
sciq
ccdb3cd8-73c3-413b-87a5-ccd9f7d172d7
Since the electric field lines point radially away from the charge, they are perpendicular to what?
[ "singularity lines", "magnetic field lines", "equipotential lines", "archetypical lines" ]
equipotential lines
sciq
52833944-42b2-4055-b55e-8bf933152492
What are in leaves that function as solar collectors and food factories?
[ "chloroplasts", "vacuoles", "cellulose", "fibroblasts" ]
chloroplasts
sciq
29335f24-e120-4fe8-aee7-b9efd01b14c8
What is the process of producing eggs in the ovary is called?
[ "morphogenesis", "oogenesis", "gametogenesis", "meiosis" ]
oogenesis
sciq
5ce018d8-24ac-4fa9-aacd-d6e9fc65eb8c
What term refers to the deliberate prevention of pregnancy?
[ "contraception", "abortion", "reproduction", "cessation" ]
contraception
sciq
7cd55a26-3d4e-4cf9-9cb6-d1daebb2d459
Homologous chromosomes move toward what poles?
[ "octogonal", "parallel", "opposite", "interior" ]
opposite
sciq
8926b1d3-6747-4170-a2da-0fe4c8838f76
Why are the stems of many xerophytes fleshy?
[ "pressures water", "collects water", "stores water", "drains water" ]
stores water
sciq
c0d22276-5ad4-437b-ba6b-5454b607e60d
Most body fluids that you release from your body contain chemicals that kill pathogens. for example, mucus, sweat, tears, and saliva contain enzymes called?
[ "lipids", "sporozoans", "enzymes", "lysozymes" ]
lysozymes
sciq
49b6bf1b-a8c0-431a-b01a-07bd67df6665
What is at the top of the mesosphere?
[ "mesopause", "Mesosphere", "Troposphere", "Stratosphere" ]
mesopause
sciq
1e9719ba-1599-46cf-acf5-2618cdb30f5a
Yogurt is made from milk fermented with what type of organism?
[ "bacteria", "algae", "viruses", "yeast" ]
bacteria
sciq
4a4847b5-291c-46fb-9455-fe26f9f873c2
What happens to an animal's telomeres as it ages?
[ "multiply", "shorten", "divide", "lengthen" ]
shorten
sciq
ef0fa0c5-17a0-48a3-9844-456f4a59c16a
Characterized by uncontrolled growth, cancerous cells are also called what?
[ "abnormal", "benign", "malignant", "toxic" ]
malignant
sciq
9054a04c-aa46-4bbf-9b24-82847c7b18e0
Historically, malaria has rivaled what as the leading cause of human death by infectious disease?
[ "hepatitis", "heart attack", "cancer", "tuberculosis" ]
tuberculosis
sciq
9a8531c6-cee3-4c2e-bc88-dcaeb9057ba6
When the number of electrons and the number of protons are equal, the object is what?
[ "Positive", "Negative", "static", "neutral" ]
neutral
sciq
20f4dd1d-9759-4090-9007-37cfa2780bc4
The angle of refraction depends on the index of what?
[ "refraction", "frequency", "vibration", "reflection" ]
refraction
sciq
595c3e23-304d-4a5e-99a3-40377372c069
Systems are in thermal equilibrium when they have the same of what measurement?
[ "temperature", "density", "mass", "oxygen" ]
temperature
sciq
dadc3e03-acc3-47cc-bdbc-ac64241af31f
What needs to be increased to change a solid into a liquid or gas?
[ "temperature", "pressure", "volume", "oxygen" ]
temperature
sciq
1462bc06-6583-41e5-990f-f36e1ade47ac
Minerals that are not compounds consist of a single what?
[ "electron", "gas", "element", "proton" ]
element
sciq