q_id
stringlengths 6
6
⌀ | title
stringlengths 3
546
| selftext
stringlengths 0
4.44k
⌀ | category
stringclasses 12
values | subreddit
stringclasses 1
value | answers.a_id
listlengths 1
489
⌀ | answers.text
listlengths 1
4
| answers.score
listlengths 1
4
| answers.text_urls
listlengths 1
489
⌀ | title_urls
listlengths 1
1
⌀ | selftext_urls
listlengths 1
1
⌀ |
|---|---|---|---|---|---|---|---|---|---|---|
null |
Which of the following is the correct answer to the question:
What kind of behavior occurs only after experience or practice?
1. juvenile behavior
2. memory
3. learned behavior
4. instinctive behavior
| null | null | null | null |
[
"juvenile behavior",
"memory",
"learned behavior",
"instinctive behavior"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
The right side of the heart collects what type of blood from the body?
1. oxygen-rich
2. dioxide-poor
3. potassium-rich
4. oxygen-poor
| null | null | null | null |
[
"oxygen-rich",
"dioxide-poor",
"potassium-rich",
"oxygen-poor"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Hot material from near the sun’s center rises in which zone?
1. thermosphere
2. drifting zone
3. radiative zone
4. convection zone
| null | null | null | null |
[
"thermosphere",
"drifting zone",
"radiative zone",
"convection zone"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
The presence of what in leaf cells makes most leaves appear green?
1. hydrogen
2. carbonate
3. sodium
4. chlorophyll
| null | null | null | null |
[
"hydrogen",
"carbonate",
"sodium",
"chlorophyll"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What is the name of the project concerning genetics that is one of the landmark scientific events of the last 50 years?
1. human genome project
2. manhattan project
3. human organism project
4. blue beam project
| null | null | null | null |
[
"human genome project",
"manhattan project",
"human organism project",
"blue beam project"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Wind is one method for dispersal of what, ensuring a new generation?
1. clouds
2. eggs
3. dust
4. seeds
| null | null | null | null |
[
"clouds",
"eggs",
"dust",
"seeds"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Most ecosystems are disturbed too often to attain what final, stable status?
1. calm community
2. undisrupted community
3. climax community
4. even community
| null | null | null | null |
[
"calm community",
"undisrupted community",
"climax community",
"even community"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What kind of diet is typical for raptors, such as hawks and owls?
1. carnivorous
2. herbivorous
3. fishes
4. carnivorous or herbivorous
| null | null | null | null |
[
"carnivorous",
"herbivorous",
"fishes",
"carnivorous or herbivorous"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
The most basic division of land plants is between what type of plants?
1. succulents and conifers
2. deciduous and evergreen
3. perennial and annual
4. nonvascular and vascular
| null | null | null | null |
[
"succulents and conifers",
"deciduous and evergreen",
"perennial and annual",
"nonvascular and vascular"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What do vaccines produce to combat viral diseases?
1. sensitivity
2. immunity
3. hyperthyroidism
4. sterility
| null | null | null | null |
[
"sensitivity",
"immunity",
"hyperthyroidism",
"sterility"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Internal functions are coordinated and regulated so that the internal environment of a living thing is relatively constant, referred to as what?
1. hypothesis
2. homogenesis
3. homeostasis
4. stabilizer
| null | null | null | null |
[
"hypothesis",
"homogenesis",
"homeostasis",
"stabilizer"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What is a long, tube-shaped bundle of neurons, protected by the vertebrae?
1. the spinal cord
2. a dendrite
3. an axon
4. a ganglion
| null | null | null | null |
[
"the spinal cord",
"a dendrite",
"an axon",
"a ganglion"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What does the kelvin scale measure?
1. temperature
2. oxygen
3. precipitation
4. height
| null | null | null | null |
[
"temperature",
"oxygen",
"precipitation",
"height"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Ash that enters the air naturally as a result of a volcano eruption is classified as what kind of pollutant?
1. primary pollutant
2. thick pollutant
3. secondary pollutant
4. natural pollutant
| null | null | null | null |
[
"primary pollutant",
"thick pollutant",
"secondary pollutant",
"natural pollutant"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What happens when an increase in temperature of a gas in a rigid container happens?
1. pressure decreases
2. pressure increases
3. gas explodes
4. container shrinks
| null | null | null | null |
[
"pressure decreases",
"pressure increases",
"gas explodes",
"container shrinks"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Which reaction between alkyl halides and ammonia makes alkylamines?
1. conductive substitution reactions
2. nitrogen catabolism
3. nucleophilic substitution reactions
4. nucleophobic reactions
| null | null | null | null |
[
"conductive substitution reactions",
"nitrogen catabolism",
"nucleophilic substitution reactions",
"nucleophobic reactions"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Genes are organized to make the control of gene expression easier. the promoter region is immediately upstream of this?
1. coding sequence
2. organic sequence
3. signalling sequence
4. propagate sequence
| null | null | null | null |
[
"coding sequence",
"organic sequence",
"signalling sequence",
"propagate sequence"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Which phylum is made up of segmented worms such as earthworms?
1. chordata
2. annelida
3. nematoda
4. arthropod
| null | null | null | null |
[
"chordata",
"annelida",
"nematoda",
"arthropod"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What is the transfer of thermal energy between substances called?
1. Diffusion
2. Radiation
3. Permeation
4. heat
| null | null | null | null |
[
"Diffusion",
"Radiation",
"Permeation",
"heat"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What functional units of chromosomes determine specific characteristics by coding for specific proteins?
1. DNA
2. chromosomes
3. cells
4. genes
| null | null | null | null |
[
"DNA",
"chromosomes",
"cells",
"genes"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Aside from light, incandescent light bulbs also give off what that wastes energy?
1. electricity
2. heat
3. humidity
4. temperature
| null | null | null | null |
[
"electricity",
"heat",
"humidity",
"temperature"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What is an alpha particle with two protons and two neutrons called?
1. hydrogen nucleus
2. chloride nucleus
3. helium nucleus
4. hydrogen nucleus
| null | null | null | null |
[
"hydrogen nucleus",
"chloride nucleus",
"helium nucleus",
"hydrogen nucleus"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Just as the reaction of a diol and a diacid forms a polyester, the reaction of a diacid and a diamine yields this?
1. polyamide
2. acetone
3. polyethylene
4. phenol
| null | null | null | null |
[
"polyamide",
"acetone",
"polyethylene",
"phenol"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Structural rearrangements of what include partial duplications, deletions, inversions, and translocations; duplications and deletions often produce offspring that survive but exhibit physical and mental abnormalities?
1. chromosomes
2. cells
3. neutrons
4. phenotypes
| null | null | null | null |
[
"chromosomes",
"cells",
"neutrons",
"phenotypes"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
The e. coli chromosome, like many other bacterial chromosomes, is what shape?
1. triangular
2. oval
3. circular
4. square
| null | null | null | null |
[
"triangular",
"oval",
"circular",
"square"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What is the force of attraction between two masses?
1. inertia
2. gravity
3. momentum
4. electricity
| null | null | null | null |
[
"inertia",
"gravity",
"momentum",
"electricity"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Chordates include vertebrates and invertebrates that have what?
1. a endoderm
2. a notochord
3. chordate
4. a phloem
| null | null | null | null |
[
"a endoderm",
"a notochord",
"chordate",
"a phloem"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Nearly how many millions of people die yearly due to air pollution?
1. eight million
2. two million
3. five million
4. fifty million
| null | null | null | null |
[
"eight million",
"two million",
"five million",
"fifty million"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What instrument is used to record the length and strength of an earthquake?
1. microscope
2. transmitter
3. epicenter
4. seismograph
| null | null | null | null |
[
"microscope",
"transmitter",
"epicenter",
"seismograph"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Skeletal muscles must work in pairs to move bones back and forth at a joint because they can only do what?
1. expand
2. pull
3. contract
4. vibrate
| null | null | null | null |
[
"expand",
"pull",
"contract",
"vibrate"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What type of molecules are secreted by the cell in local signaling?
1. sleeping molecules
2. negaitive molecules
3. messenger molecules
4. word molecules
| null | null | null | null |
[
"sleeping molecules",
"negaitive molecules",
"messenger molecules",
"word molecules"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Pulmonary ventilation in mammals occurs via what?
1. osmosis
2. inhalation
3. ingestion
4. inflammation
| null | null | null | null |
[
"osmosis",
"inhalation",
"ingestion",
"inflammation"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Chemical signals are received by the target cell on what?
1. inceptor proteins
2. acidic proteins
3. receptor proteins
4. parent proteins
| null | null | null | null |
[
"inceptor proteins",
"acidic proteins",
"receptor proteins",
"parent proteins"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What kind of organisms are prokaryotes?
1. single-celled
2. viral
3. single - flagellated
4. multicellular organisms
| null | null | null | null |
[
"single-celled",
"viral",
"single - flagellated",
"multicellular organisms"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What act like filters and remove pathogens from lymph?
1. tissue nodes
2. spine nodes
3. lymph nodes
4. electric nodes
| null | null | null | null |
[
"tissue nodes",
"spine nodes",
"lymph nodes",
"electric nodes"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What are the primary cells of adaptive immune response?
1. lymphocytes
2. white blood cells
3. erythrocytes
4. red blood cells
| null | null | null | null |
[
"lymphocytes",
"white blood cells",
"erythrocytes",
"red blood cells"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What term refers to the friction of fluid, within itself and its surroundings?
1. volume
2. elasticity
3. viscosity
4. salinity
| null | null | null | null |
[
"volume",
"elasticity",
"viscosity",
"salinity"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What do you call a unique substance formed when two or more elements combine chemically?
1. solution
2. compound
3. mixture
4. component
| null | null | null | null |
[
"solution",
"compound",
"mixture",
"component"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Caves form over time when what causes rocks like limestone to dissolve?
1. water
2. air
3. weather
4. acid
| null | null | null | null |
[
"water",
"air",
"weather",
"acid"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Cycloalkanes are hydrocarbons whose molecules are closed rings rather than straight or branched chains. a cyclic hydrocarbon is a hydrocarbon with a ring of these?
1. hydrogen atoms
2. carbon atoms
3. oxygen atoms
4. barium atoms
| null | null | null | null |
[
"hydrogen atoms",
"carbon atoms",
"oxygen atoms",
"barium atoms"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Speciation, convergent evolution, and coevolution are types of what process?
1. macroevolution
2. devolution
3. microevolution
4. systemic evolution
| null | null | null | null |
[
"macroevolution",
"devolution",
"microevolution",
"systemic evolution"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
In what state do ionic compounds best conduct electricity?
1. liquid
2. gas
3. plasma
4. solid
| null | null | null | null |
[
"liquid",
"gas",
"plasma",
"solid"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What type of protein fibers in the cytoskeleton are the narrowest?
1. capillaries
2. mitosis
3. macrophages
4. microfilaments
| null | null | null | null |
[
"capillaries",
"mitosis",
"macrophages",
"microfilaments"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Which layer of the earth is molten?
1. the inner core
2. the outer core
3. the mantle
4. the metallic core
| null | null | null | null |
[
"the inner core",
"the outer core",
"the mantle",
"the metallic core"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What is the general name for a solid material that is formed via a natural process?
1. chemical
2. mineral
3. plasma
4. gas
| null | null | null | null |
[
"chemical",
"mineral",
"plasma",
"gas"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
In a photosystem, pigments in the light-harvesting complex pass light energy to two special molecules of what in the reaction center?
1. chlorophyll
2. carbonate
3. nutrient
4. calcium
| null | null | null | null |
[
"chlorophyll",
"carbonate",
"nutrient",
"calcium"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What branch of science is the study of matter and energy?
1. physical science
2. negative science
3. natural science
4. unnatural science
| null | null | null | null |
[
"physical science",
"negative science",
"natural science",
"unnatural science"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What make us sick when they become human parasites?
1. larvae
2. viruses
3. detritus
4. protozoa
| null | null | null | null |
[
"larvae",
"viruses",
"detritus",
"protozoa"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
The tendency of an object to resist a change in its motion is called?
1. magnetism
2. inertia
3. friction
4. gravitation
| null | null | null | null |
[
"magnetism",
"inertia",
"friction",
"gravitation"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Contributing to the blood-brain barrier is one of the jobs of glial cells, which support neurons in what system?
1. central nervous system
2. digestive system
3. circulatory system
4. peripheral nervous system
| null | null | null | null |
[
"central nervous system",
"digestive system",
"circulatory system",
"peripheral nervous system"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
During the condensation reaction of sugars what is removed, linking the two sugars?
1. chlorophyll
2. water
3. hormones
4. air
| null | null | null | null |
[
"chlorophyll",
"water",
"hormones",
"air"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What develops into embryos inside seeds, from which the next sporophyte generation grows?
1. pupa
2. buds
3. secretions
4. zygotes
| null | null | null | null |
[
"pupa",
"buds",
"secretions",
"zygotes"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
A change in temperature with distance is called a what?
1. speed gradient
2. oxygen gradient
3. temperature gradient
4. solution gradient
| null | null | null | null |
[
"speed gradient",
"oxygen gradient",
"temperature gradient",
"solution gradient"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What sac, which was sitting on top of the flat embryo, envelops the embryo as it folds?
1. amniotic sac
2. epithelial sac
3. uterus
4. umbilical sac
| null | null | null | null |
[
"amniotic sac",
"epithelial sac",
"uterus",
"umbilical sac"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Catecholamines are a class of amine hormones synthesised form which amino acid?
1. phenylalanine
2. epinephrine
3. dopamine
4. tyrosine
| null | null | null | null |
[
"phenylalanine",
"epinephrine",
"dopamine",
"tyrosine"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Regulation of hormone production hormone levels are primarily controlled through negative feedback, in which rising levels of a hormone inhibit its?
1. Limited release
2. further release
3. recent release
4. particular release
| null | null | null | null |
[
"Limited release",
"further release",
"recent release",
"particular release"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Androgen secretion and sperm production are both controlled by hypothalamic and which other hormones?
1. salivary
2. pituitary
3. Testes
4. adrenal
| null | null | null | null |
[
"salivary",
"pituitary",
"Testes",
"adrenal"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
The sum of the superscripts in an electron configuration is equal to the number of electrons in that atom, which is in turn equal to what number?
1. shell number
2. atomic number
3. metallic number
4. orbital number
| null | null | null | null |
[
"shell number",
"atomic number",
"metallic number",
"orbital number"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What part of the brain controls body position, coordination, and balance?
1. cerebrum
2. right brain
3. cerebellum
4. brain stem
| null | null | null | null |
[
"cerebrum",
"right brain",
"cerebellum",
"brain stem"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
When light transfers its energy to objects, this is known as what?
1. condensation
2. accumulation
3. evaporation
4. absorption
| null | null | null | null |
[
"condensation",
"accumulation",
"evaporation",
"absorption"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What do most amphibians breathe with as larvae?
1. nasal passages
2. gills
3. pores
4. lungs
| null | null | null | null |
[
"nasal passages",
"gills",
"pores",
"lungs"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
The chemical used by the ants to weed their garden turns out to be what kind?
1. nitric acid
2. sulfide acid
3. sealant acid
4. formic acid
| null | null | null | null |
[
"nitric acid",
"sulfide acid",
"sealant acid",
"formic acid"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
A common age-related bone disease in which bone density and strength is decreased is know as what?
1. Stomach
2. allergies
3. fibrosis
4. osteoporosis
| null | null | null | null |
[
"Stomach",
"allergies",
"fibrosis",
"osteoporosis"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Some fruit, like peaches, only have one big seed. what is this seed called?
1. the seed
2. the pit
3. the core
4. the middle
| null | null | null | null |
[
"the seed",
"the pit",
"the core",
"the middle"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Dragonflies were one of the first insects to do what?
1. fight
2. sexually reproduce
3. swim
4. fly
| null | null | null | null |
[
"fight",
"sexually reproduce",
"swim",
"fly"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Intestinal cells combine with proteins to create what?
1. lipoproteins
2. chylomicrons
3. chondrocytes
4. amino acids
| null | null | null | null |
[
"lipoproteins",
"chylomicrons",
"chondrocytes",
"amino acids"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Dutch elm trees used to be common, beautiful trees in the united states. now most of them have been killed by what?
1. beetles
2. cancer
3. carbon dioxide
4. dutch elm disease
| null | null | null | null |
[
"beetles",
"cancer",
"carbon dioxide",
"dutch elm disease"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Two major types of fungus-like protists are slime molds and which other?
1. water molds
2. black molds
3. foul molds
4. green molds
| null | null | null | null |
[
"water molds",
"black molds",
"foul molds",
"green molds"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What are broken down during digestion to provide the amino acids needed for protein synthesis?
1. sugars
2. dietary proteins
3. metabolytes
4. carbohydrates
| null | null | null | null |
[
"sugars",
"dietary proteins",
"metabolytes",
"carbohydrates"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
A group of atoms that results when one hydrogen atom is removed from an alkane is referred to as what?
1. nitrate group
2. chloride group
3. hyrdrogen group
4. alkyl group
| null | null | null | null |
[
"nitrate group",
"chloride group",
"hyrdrogen group",
"alkyl group"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What is the term for stored energy that an object has due to its position or shape?
1. potential energy
2. mechanical energy
3. kinetic energy
4. vertical energy
| null | null | null | null |
[
"potential energy",
"mechanical energy",
"kinetic energy",
"vertical energy"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What force is greater on rougher surfaces than smooth surfaces?
1. tension
2. acceleration
3. gravity
4. friction
| null | null | null | null |
[
"tension",
"acceleration",
"gravity",
"friction"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Nitrogen is a very important element to living things, because it is part of nucleotides and amino acids that are the building blocks of nucleic acids and these?
1. cells
2. lipids
3. proteins
4. follicles
| null | null | null | null |
[
"cells",
"lipids",
"proteins",
"follicles"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
In the mouth, enzymes present in what begin to chemically break down food?
1. acid
2. saliva
3. blood
4. lymph
| null | null | null | null |
[
"acid",
"saliva",
"blood",
"lymph"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Unlike the cells of plants and fungi, animal cells lack what?
1. nuclei
2. cell wall
3. flagella
4. mitochondria
| null | null | null | null |
[
"nuclei",
"cell wall",
"flagella",
"mitochondria"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Because alkali metals are so reactive, they are found in nature only in ________ with other elements?
1. cooperation
2. combination
3. isolation
4. competition
| null | null | null | null |
[
"cooperation",
"combination",
"isolation",
"competition"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What is the plane that divides the body or an organ vertically into right and left sides?
1. parasagittal plane
2. anatomical plane
3. sagittal plane
4. median plane
| null | null | null | null |
[
"parasagittal plane",
"anatomical plane",
"sagittal plane",
"median plane"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What are the organs work together to allow us to see?
1. nose
2. heart
3. brain and eyes
4. lungs
| null | null | null | null |
[
"nose",
"heart",
"brain and eyes",
"lungs"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
The brain develops from this early tube structure and gives rise to specific regions of the adult brain. as the neural tube grows and differentiates, it enlarges into three vesicles that correspond to the forebrain, midbrain, and this?
1. astrobrain
2. hindbrain
3. rearbrain
4. anteriorbrain
| null | null | null | null |
[
"astrobrain",
"hindbrain",
"rearbrain",
"anteriorbrain"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Biotechnology uses what to solve problems?
1. geology
2. biology
3. psycology
4. ecology
| null | null | null | null |
[
"geology",
"biology",
"psycology",
"ecology"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What are hurricanes called in the pacific?
1. tornados
2. typhoons
3. rainstorms
4. twisters
| null | null | null | null |
[
"tornados",
"typhoons",
"rainstorms",
"twisters"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What is the organ in which gas exchanges take place between blood and air?
1. kidney
2. heart
3. skin
4. lungs
| null | null | null | null |
[
"kidney",
"heart",
"skin",
"lungs"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What branch of science deals with the effects people have on the environment?
1. physical science
2. environmental science
3. cultural science
4. ecological science
| null | null | null | null |
[
"physical science",
"environmental science",
"cultural science",
"ecological science"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Sickle cell anemia is what type of disorder?
1. nongenetic disorder
2. spontaneous mutation
3. autosomal dominant disorder
4. autosomal recessive disorder
| null | null | null | null |
[
"nongenetic disorder",
"spontaneous mutation",
"autosomal dominant disorder",
"autosomal recessive disorder"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Which region is just posterior to the mouth?
1. the esophagus
2. the duodenum
3. the diaphragm
4. the pharynx
| null | null | null | null |
[
"the esophagus",
"the duodenum",
"the diaphragm",
"the pharynx"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What is the collective travel of sheep known as?
1. gaggle
2. herd
3. load
4. den
| null | null | null | null |
[
"gaggle",
"herd",
"load",
"den"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What are these examples of: a person riding a carousel and a skydiver in free fall?
1. centrifugal force
2. vibration
3. centripetal force
4. acceleration
| null | null | null | null |
[
"centrifugal force",
"vibration",
"centripetal force",
"acceleration"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Elements below the second period, such as silicon, do not form what as readily as second-period elements, and when they do form, they are weaker than those formed by second-period elements?
1. k. bonds
2. magnetic bonds
3. n bonds
4. covalent bonds
| null | null | null | null |
[
"k. bonds",
"magnetic bonds",
"n bonds",
"covalent bonds"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Through what method or methods of fertilization do amphibians sexually reproduce?
1. mitosis and meiosis
2. spawning or budding
3. asexual or sexual
4. external or internal
| null | null | null | null |
[
"mitosis and meiosis",
"spawning or budding",
"asexual or sexual",
"external or internal"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
The distance between corresponding points of adjacent waves is known as the __________
1. absorption
2. amplitude
3. bandwidth
4. wavelength
| null | null | null | null |
[
"absorption",
"amplitude",
"bandwidth",
"wavelength"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Which system consists of all the nervous tissue that lies outside the central nervous system?
1. spinal cord
2. auxiliary nervous system
3. peripheral nervous system
4. cerebral cortex
| null | null | null | null |
[
"spinal cord",
"auxiliary nervous system",
"peripheral nervous system",
"cerebral cortex"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What mechanism is used by living organisms to pass along genes?
1. chlorophyll
2. protein
3. digestion
4. dna
| null | null | null | null |
[
"chlorophyll",
"protein",
"digestion",
"dna"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
The third line of defense of the immune system is called?
1. the asymptomatic response
2. the sudden response
3. the immune response
4. the malignant response
| null | null | null | null |
[
"the asymptomatic response",
"the sudden response",
"the immune response",
"the malignant response"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What's it called when gases turn back into liquids?
1. dehydration
2. condensation
3. evaporation
4. diffusion
| null | null | null | null |
[
"dehydration",
"condensation",
"evaporation",
"diffusion"
] |
[
1,
10,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What is a molecule made up of two subunits?
1. dimer
2. acid
3. chloride
4. enzyme
| null | null | null | null |
[
"dimer",
"acid",
"chloride",
"enzyme"
] |
[
10,
1,
1,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
The pulmonary artery carries deoxygenated blood into the lungs from this?
1. legs
2. bladder
3. brain
4. heart
| null | null | null | null |
[
"legs",
"bladder",
"brain",
"heart"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
All of the living things in an area and the nonliving environment together make up what?
1. biosphere
2. biome
3. taiga
4. ecosystem
| null | null | null | null |
[
"biosphere",
"biome",
"taiga",
"ecosystem"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What areas of the planet are most birds native to?
1. desert
2. mountainous
3. tundra
4. tropical
| null | null | null | null |
[
"desert",
"mountainous",
"tundra",
"tropical"
] |
[
1,
1,
1,
10
] | null | null | null |
null |
Which of the following is the correct answer to the question:
What is the basis of enzyme classification?
1. their color
2. their mass
3. reactions they catalyze
4. their shape
| null | null | null | null |
[
"their color",
"their mass",
"reactions they catalyze",
"their shape"
] |
[
1,
1,
10,
1
] | null | null | null |
null |
Which of the following is the correct answer to the question:
Scientists use the principles of what to make predictions, which they then test?
1. their hypothesis
2. their guesses
3. their teachers
4. their faith
| null | null | null | null |
[
"their hypothesis",
"their guesses",
"their teachers",
"their faith"
] |
[
10,
1,
1,
1
] | null | null | null |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.