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A river is moving along a path and a piece of paper falls in it. The paper
[ "screams", "flies", "sinks", "relocates" ]
relocates
Answer the following multiple-choice question. Question: A river is moving along a path and a piece of paper falls in it. The paper Options: A. screams B. flies C. sinks D. relocates Which option is correct and why?
The correct answer is: relocates.
D
Making ups about 50 percent of the modern american diet, what food group can be classified according to the number of monomers they contain of simple sugars and/or complex sugars?
[ "proteins", "grains", "fats", "carbohydrates" ]
carbohydrates
Answer the following multiple-choice question. Question: Making ups about 50 percent of the modern american diet, what food group can be classified according to the number of monomers they contain of simple sugars and/or complex sugars? Options: A. proteins B. grains C. fats D. carbohydrates Which option is correct and why?
The correct answer is: carbohydrates.
D
What happens when a wire is moved across a magnetic field?
[ "unidirectional", "the wire heats up", "deoxyribonucleic acid", "permineralization", "electromagnetic energy", "activation energy", "An object is seen", "direct energy" ]
the wire heats up
Answer the following multiple-choice question. Question: What happens when a wire is moved across a magnetic field? Options: A. unidirectional B. the wire heats up C. deoxyribonucleic acid D. permineralization E. electromagnetic energy F. activation energy G. An object is seen H. direct energy Which option is correct and why?
The correct answer is: the wire heats up.
B
What is the inner cell mass formed by the cells of the blastocyst called?
[ "xerophyte", "embryoblast", "amniotic cavity", "ectoderm" ]
embryoblast
Answer the following multiple-choice question. Question: What is the inner cell mass formed by the cells of the blastocyst called? Options: A. xerophyte B. embryoblast C. amniotic cavity D. ectoderm Which option is correct and why?
The correct answer is: embryoblast.
B
The paranasal sinuses are hollow, air-filled spaces located within certain bones of the skull. all of the sinuses communicate with the nasal cavity (paranasal = “next to nasal cavity”) and are lined with this?
[ "oral mucosa", "respiration mucosa", "nasal mucosa", "fluid mucosa" ]
nasal mucosa
Answer the following multiple-choice question. Question: The paranasal sinuses are hollow, air-filled spaces located within certain bones of the skull. all of the sinuses communicate with the nasal cavity (paranasal = “next to nasal cavity”) and are lined with this? Options: A. oral mucosa B. respiration mucosa C. nasal mucosa D. fluid mucosa Which option is correct and why?
The correct answer is: nasal mucosa.
C
What causes botulism?
[ "virus", "sunlight", "Echinoids", "Bacteria", "Pesticides", "Roundworms.", "influenza", "parasite" ]
Bacteria
Answer the following multiple-choice question. Question: What causes botulism? Options: A. virus B. sunlight C. Echinoids D. Bacteria E. Pesticides F. Roundworms. G. influenza H. parasite Which option is correct and why?
The correct answer is: Bacteria.
D
What happens to temperature in the troposphere as the altitude increases?
[ "it stays the same", "it increases", "it decreases", "it disappears" ]
it decreases
Answer the following multiple-choice question. Question: What happens to temperature in the troposphere as the altitude increases? Options: A. it stays the same B. it increases C. it decreases D. it disappears Which option is correct and why?
The correct answer is: it decreases.
C
When the earth shades part of the moon at night it's called
[ "lunar orbit", "the phases", "weather", "bad luck" ]
the phases
Answer the following multiple-choice question. Question: When the earth shades part of the moon at night it's called Options: A. lunar orbit B. the phases C. weather D. bad luck Which option is correct and why?
The correct answer is: the phases.
B
Chrissospilias are formed by
[ "deposition", "pressurization", "condensation", "cells", "decomposition", "Water expanding", "erosion", "tiny polyps" ]
deposition
Answer the following multiple-choice question. Question: Chrissospilias are formed by Options: A. deposition B. pressurization C. condensation D. cells E. decomposition F. Water expanding G. erosion H. tiny polyps Which option is correct and why?
The correct answer is: deposition.
A
If someone is dying of liquid needs, they can hydrate the body by
[ "high temp snow", "catching falling ash", "visiting a valley", "pray" ]
high temp snow
Answer the following multiple-choice question. Question: If someone is dying of liquid needs, they can hydrate the body by Options: A. high temp snow B. catching falling ash C. visiting a valley D. pray Which option is correct and why?
The correct answer is: high temp snow.
A
A lizard that passed away centuries ago may be viewed most easily today in some ways through
[ "globes", "mirrors", "telescopes", "sediment" ]
sediment
Answer the following multiple-choice question. Question: A lizard that passed away centuries ago may be viewed most easily today in some ways through Options: A. globes B. mirrors C. telescopes D. sediment Which option is correct and why?
The correct answer is: sediment.
D
What kind of power does not produce any pollutants, but produces waste that can be difficult to dispose of?
[ "electrical", "nuclear", "solar", "biofuel" ]
nuclear
Answer the following multiple-choice question. Question: What kind of power does not produce any pollutants, but produces waste that can be difficult to dispose of? Options: A. electrical B. nuclear C. solar D. biofuel Which option is correct and why?
The correct answer is: nuclear.
B
A deer eats lots of grass, but the deer is unable to create more food for itself, because in the food chain, the deer is unable to be
[ "a producer", "a consumer", "a manager", "a creator" ]
a producer
Answer the following multiple-choice question. Question: A deer eats lots of grass, but the deer is unable to create more food for itself, because in the food chain, the deer is unable to be Options: A. a producer B. a consumer C. a manager D. a creator Which option is correct and why?
The correct answer is: a producer.
A
Which of these objects could combust
[ "Seashells", "Grass", "A cat", "A paint can" ]
A paint can
Answer the following multiple-choice question. Question: Which of these objects could combust Options: A. Seashells B. Grass C. A cat D. A paint can Which option is correct and why?
The correct answer is: A paint can.
D
What is the heart's main task?
[ "pump blood", "make blood", "split blood cells", "clean blood" ]
pump blood
Answer the following multiple-choice question. Question: What is the heart's main task? Options: A. pump blood B. make blood C. split blood cells D. clean blood Which option is correct and why?
The correct answer is: pump blood.
A
Thermal conduction occurs when
[ "I leave a log poker in the fire", "I sit down on a bed", "I wave a flag in the air", "I have a party" ]
I leave a log poker in the fire
Answer the following multiple-choice question. Question: Thermal conduction occurs when Options: A. I leave a log poker in the fire B. I sit down on a bed C. I wave a flag in the air D. I have a party Which option is correct and why?
The correct answer is: I leave a log poker in the fire.
A
What is the breakdown of unstable elements into stable elements called?
[ "initial decay", "radioactive decay", "thermal decay", "radioactive decrease" ]
radioactive decay
Answer the following multiple-choice question. Question: What is the breakdown of unstable elements into stable elements called? Options: A. initial decay B. radioactive decay C. thermal decay D. radioactive decrease Which option is correct and why?
The correct answer is: radioactive decay.
B
What part of the brain is divided from front to back into the left and right hemispheres?
[ "medula oblongata", "cerebellum", "thalmus", "cerebrum" ]
cerebrum
Answer the following multiple-choice question. Question: What part of the brain is divided from front to back into the left and right hemispheres? Options: A. medula oblongata B. cerebellum C. thalmus D. cerebrum Which option is correct and why?
The correct answer is: cerebrum.
D
Global warming will raise ocean levels due to melt water from glaciers and the greater volume of what?
[ "rain", "greenhouse gases", "rainforests", "warmer water" ]
warmer water
Answer the following multiple-choice question. Question: Global warming will raise ocean levels due to melt water from glaciers and the greater volume of what? Options: A. rain B. greenhouse gases C. rainforests D. warmer water Which option is correct and why?
The correct answer is: warmer water.
D
What is defined as force per unit area?
[ "resistance", "momentum", "pressure", "energy" ]
pressure
Answer the following multiple-choice question. Question: What is defined as force per unit area? Options: A. resistance B. momentum C. pressure D. energy Which option is correct and why?
The correct answer is: pressure.
C
which of these would you most likely find in a log with a hole in it?
[ "a fish with large gills", "a dinosaur from the Jurassic era", "none of these", "a small sized raccoon" ]
a small sized raccoon
Answer the following multiple-choice question. Question: which of these would you most likely find in a log with a hole in it? Options: A. a fish with large gills B. a dinosaur from the Jurassic era C. none of these D. a small sized raccoon Which option is correct and why?
The correct answer is: a small sized raccoon.
D
Fossil records support the idea that periods of little change may be interrupted by bursts of rapid change, an evolutionary model contrasted by what?
[ "gradualism", "elitism", "darwinian", "minimalism" ]
gradualism
Answer the following multiple-choice question. Question: Fossil records support the idea that periods of little change may be interrupted by bursts of rapid change, an evolutionary model contrasted by what? Options: A. gradualism B. elitism C. darwinian D. minimalism Which option is correct and why?
The correct answer is: gradualism.
A
Plant cells can't perform photosynthesis
[ "in a backyard", "in a desert", "in a closet", "in water" ]
in a closet
Answer the following multiple-choice question. Question: Plant cells can't perform photosynthesis Options: A. in a backyard B. in a desert C. in a closet D. in water Which option is correct and why?
The correct answer is: in a closet.
C
What is the name for the division of the cytoplasm in eukaryotic cells, resulting in two genetically identical daughter cells?
[ "vegetative division", "cytokinesis", "metamorphosis", "mitosis" ]
cytokinesis
Answer the following multiple-choice question. Question: What is the name for the division of the cytoplasm in eukaryotic cells, resulting in two genetically identical daughter cells? Options: A. vegetative division B. cytokinesis C. metamorphosis D. mitosis Which option is correct and why?
The correct answer is: cytokinesis.
B
What do fires require to get started?
[ "vacuum", "heating liquids", "energy usage", "water", "activation energy", "phosphorus", "adding heat", "direct energy" ]
activation energy
Answer the following multiple-choice question. Question: What do fires require to get started? Options: A. vacuum B. heating liquids C. energy usage D. water E. activation energy F. phosphorus G. adding heat H. direct energy Which option is correct and why?
The correct answer is: activation energy.
E
A fallen tree may provide what?
[ "Hope", "Happiness", "Love", "Thriving life" ]
Thriving life
Answer the following multiple-choice question. Question: A fallen tree may provide what? Options: A. Hope B. Happiness C. Love D. Thriving life Which option is correct and why?
The correct answer is: Thriving life.
D
What property of warm air causes it to rise above cold air?
[ "greater pressure", "higher temperature", "lower density", "greater density" ]
lower density
Answer the following multiple-choice question. Question: What property of warm air causes it to rise above cold air? Options: A. greater pressure B. higher temperature C. lower density D. greater density Which option is correct and why?
The correct answer is: lower density.
C
What term means an area where two closely related species continue to interact and reproduce?
[ "homozone", "common zone", "heterozone", "hybrid zone" ]
hybrid zone
Answer the following multiple-choice question. Question: What term means an area where two closely related species continue to interact and reproduce? Options: A. homozone B. common zone C. heterozone D. hybrid zone Which option is correct and why?
The correct answer is: hybrid zone.
D
Unevenness or asymmetry in the focus of the eye describes what visual defect?
[ "hyperopia", "myopia", "presbyopia", "astigmatism" ]
astigmatism
Answer the following multiple-choice question. Question: Unevenness or asymmetry in the focus of the eye describes what visual defect? Options: A. hyperopia B. myopia C. presbyopia D. astigmatism Which option is correct and why?
The correct answer is: astigmatism.
D
What property of carbon and other elements can be used to date fossils and rocks, among other things?
[ "half-life", "full-life", "magnetic force", "mass" ]
half-life
Answer the following multiple-choice question. Question: What property of carbon and other elements can be used to date fossils and rocks, among other things? Options: A. half-life B. full-life C. magnetic force D. mass Which option is correct and why?
The correct answer is: half-life.
A
You're more likely to shiver on a
[ "seaside coast", "high mountain peak", "ocean island", "sunny beach" ]
high mountain peak
Answer the following multiple-choice question. Question: You're more likely to shiver on a Options: A. seaside coast B. high mountain peak C. ocean island D. sunny beach Which option is correct and why?
The correct answer is: high mountain peak.
B
What organ system consists of the skin, nails and hair?
[ "integumentary system", "endocrine system", "digestive system", "nervous system" ]
integumentary system
Answer the following multiple-choice question. Question: What organ system consists of the skin, nails and hair? Options: A. integumentary system B. endocrine system C. digestive system D. nervous system Which option is correct and why?
The correct answer is: integumentary system.
A
What hypothesis states that the biosphere is its own living organism
[ "the seager hypothesis", "Big Bang theory", "the gaia hypothesis", "small world theory" ]
the gaia hypothesis
Answer the following multiple-choice question. Question: What hypothesis states that the biosphere is its own living organism Options: A. the seager hypothesis B. Big Bang theory C. the gaia hypothesis D. small world theory Which option is correct and why?
The correct answer is: the gaia hypothesis.
C
animals are unable to stay in good health without enough
[ "sustenance", "video games", "socks", "doors" ]
sustenance
Answer the following multiple-choice question. Question: animals are unable to stay in good health without enough Options: A. sustenance B. video games C. socks D. doors Which option is correct and why?
The correct answer is: sustenance.
A
What often precedes mating?
[ "A Greek letter", "competition", "friendship", "birth of a child", "death", "Chemical energy", "pregnancy", "sweating" ]
friendship
Answer the following multiple-choice question. Question: What often precedes mating? Options: A. A Greek letter B. competition C. friendship D. birth of a child E. death F. Chemical energy G. pregnancy H. sweating Which option is correct and why?
The correct answer is: friendship.
C
electrical energy is converted into
[ "engines", "Pollution", "heat energy", "sensory neurons", "Firecrackers", "animal transport", "to move people", "warmth" ]
heat energy
Answer the following multiple-choice question. Question: electrical energy is converted into Options: A. engines B. Pollution C. heat energy D. sensory neurons E. Firecrackers F. animal transport G. to move people H. warmth Which option is correct and why?
The correct answer is: heat energy.
C
What grow in length and girth caused by meristems?
[ "roots", "ferns", "legumes", "Trees", "plants", "Flowers", "bushes", "bamboo" ]
roots
Answer the following multiple-choice question. Question: What grow in length and girth caused by meristems? Options: A. roots B. ferns C. legumes D. Trees E. plants F. Flowers G. bushes H. bamboo Which option is correct and why?
The correct answer is: roots.
A
what is it when a gill converts from oxygen in water into oxygen in blood?
[ "fertilization occurs", "prolactin release", "preventing heat transfer", "first step of respiration", "last step of digestion", "flow of electrons", "death", "fish" ]
first step of respiration
Answer the following multiple-choice question. Question: what is it when a gill converts from oxygen in water into oxygen in blood? Options: A. fertilization occurs B. prolactin release C. preventing heat transfer D. first step of respiration E. last step of digestion F. flow of electrons G. death H. fish Which option is correct and why?
The correct answer is: first step of respiration.
D
Negative impacts on organisms can be what?
[ "Pollution", "miscounted", "dangerous", "saved for later", "treated", "influenza", "A virus", "frozen" ]
treated
Answer the following multiple-choice question. Question: Negative impacts on organisms can be what? Options: A. Pollution B. miscounted C. dangerous D. saved for later E. treated F. influenza G. A virus H. frozen Which option is correct and why?
The correct answer is: treated.
E
What is the study of rock strata called?
[ "biology", "biochemistry", "chemistry", "stratigraphy" ]
stratigraphy
Answer the following multiple-choice question. Question: What is the study of rock strata called? Options: A. biology B. biochemistry C. chemistry D. stratigraphy Which option is correct and why?
The correct answer is: stratigraphy.
D
What can be formed when layers of sediment cover the remains of fish?
[ "oysters", "detritus", "bones", "deposits", "fossils", "metamorphic rocks", "volcanic rock", "shells" ]
fossils
Answer the following multiple-choice question. Question: What can be formed when layers of sediment cover the remains of fish? Options: A. oysters B. detritus C. bones D. deposits E. fossils F. metamorphic rocks G. volcanic rock H. shells Which option is correct and why?
The correct answer is: fossils.
E
When do vein deposits of gold and silver form?
[ "When magma warms up", "flow of electrons", "it can be seen", "permineralization", "When magma cools", "aqueous solution", "When the air is cold", "When water rises" ]
When magma cools
Answer the following multiple-choice question. Question: When do vein deposits of gold and silver form? Options: A. When magma warms up B. flow of electrons C. it can be seen D. permineralization E. When magma cools F. aqueous solution G. When the air is cold H. When water rises Which option is correct and why?
The correct answer is: When magma cools.
E
What are the glands that secrete milk in a woman's breasts?
[ "mammary glands", "pituitary glands", "lactic acids", "primordial glands" ]
mammary glands
Answer the following multiple-choice question. Question: What are the glands that secrete milk in a woman's breasts? Options: A. mammary glands B. pituitary glands C. lactic acids D. primordial glands Which option is correct and why?
The correct answer is: mammary glands.
A
What is the representative particle in pure metals?
[ "neutron", "the atom", "electron", "quark" ]
the atom
Answer the following multiple-choice question. Question: What is the representative particle in pure metals? Options: A. neutron B. the atom C. electron D. quark Which option is correct and why?
The correct answer is: the atom.
B
An earthquake causes the ground to do what?
[ "rain", "erupt", "calm", "quiver" ]
quiver
Answer the following multiple-choice question. Question: An earthquake causes the ground to do what? Options: A. rain B. erupt C. calm D. quiver Which option is correct and why?
The correct answer is: quiver.
D
What helps animals survive?
[ "vegetation", "rivers", "valleys", "traits", "Pituitary gland", "kinetic energy", "hibernation", "rocks" ]
vegetation
Answer the following multiple-choice question. Question: What helps animals survive? Options: A. vegetation B. rivers C. valleys D. traits E. Pituitary gland F. kinetic energy G. hibernation H. rocks Which option is correct and why?
The correct answer is: vegetation.
A
Large trees block sunlight from reaching what?
[ "moons", "outdoor floor", "clouds", "coffee grounds" ]
outdoor floor
Answer the following multiple-choice question. Question: Large trees block sunlight from reaching what? Options: A. moons B. outdoor floor C. clouds D. coffee grounds Which option is correct and why?
The correct answer is: outdoor floor.
B
By finding the distance of something you are
[ "totally clueless", "gathering data", "playing around", "wasting time" ]
gathering data
Answer the following multiple-choice question. Question: By finding the distance of something you are Options: A. totally clueless B. gathering data C. playing around D. wasting time Which option is correct and why?
The correct answer is: gathering data.
B
what do tissues form?
[ "the skin", "ferns", "clouds", "density", "alveoli", "kidneys", "h2o", "perennials" ]
kidneys
Answer the following multiple-choice question. Question: what do tissues form? Options: A. the skin B. ferns C. clouds D. density E. alveoli F. kidneys G. h2o H. perennials Which option is correct and why?
The correct answer is: kidneys.
A
What causes ice storms?
[ "colder weather", "Fossil fuels", "heat energy", "a hydraulic system", "Water expanding", "salt and water.", "erosion", "less water" ]
Fossil fuels
Answer the following multiple-choice question. Question: What causes ice storms? Options: A. colder weather B. Fossil fuels C. heat energy D. a hydraulic system E. Water expanding F. salt and water. G. erosion H. less water Which option is correct and why?
The correct answer is: Fossil fuels.
B
Why does ice wedging occur?
[ "water expands", "water melts", "water evaporates", "water freezes" ]
water expands
Answer the following multiple-choice question. Question: Why does ice wedging occur? Options: A. water expands B. water melts C. water evaporates D. water freezes Which option is correct and why?
The correct answer is: water expands.
A
Sand dunes are made of
[ "nitrogen rich top soil", "giant hills of tiny beads", "the raw materiel that makes glass", "small groups of parasites" ]
the raw materiel that makes glass
Answer the following multiple-choice question. Question: Sand dunes are made of Options: A. nitrogen rich top soil B. giant hills of tiny beads C. the raw materiel that makes glass D. small groups of parasites Which option is correct and why?
The correct answer is: the raw materiel that makes glass.
C
what is individuals moving into or out of a population?
[ "Greenhouse gases", "rapid expansion", "Burning fuel and air", "permineralization", "peachleaf willow", "competition", "unidirectional", "food and shelter" ]
unidirectional
Answer the following multiple-choice question. Question: what is individuals moving into or out of a population? Options: A. Greenhouse gases B. rapid expansion C. Burning fuel and air D. permineralization E. peachleaf willow F. competition G. unidirectional H. food and shelter Which option is correct and why?
The correct answer is: unidirectional.
A
What forms in warm water?
[ "fungus", "a solute", "sun", "bricks", "lake", "liquid", "corals", "bacteria" ]
corals
Answer the following multiple-choice question. Question: What forms in warm water? Options: A. fungus B. a solute C. sun D. bricks E. lake F. liquid G. corals H. bacteria Which option is correct and why?
The correct answer is: corals.
A
Which factor often changes a protein from an inactive form to an active form?
[ "phosphate groups addition", "lipid groups addition", "oxygen groups addition", "nitrogen groups addition" ]
phosphate groups addition
Answer the following multiple-choice question. Question: Which factor often changes a protein from an inactive form to an active form? Options: A. phosphate groups addition B. lipid groups addition C. oxygen groups addition D. nitrogen groups addition Which option is correct and why?
The correct answer is: phosphate groups addition.
A
Partial albinism results from a mutation in an enzyme that is involved in the production of what?
[ "melanin", "hair", "cancer", "cytoplasm" ]
melanin
Answer the following multiple-choice question. Question: Partial albinism results from a mutation in an enzyme that is involved in the production of what? Options: A. melanin B. hair C. cancer D. cytoplasm Which option is correct and why?
The correct answer is: melanin.
A
Spindle fibers pull what apart in anaphase i?
[ "risk chromosomes", "True Chromosomes", "linked chromosomes", "known chromosomes" ]
linked chromosomes
Answer the following multiple-choice question. Question: Spindle fibers pull what apart in anaphase i? Options: A. risk chromosomes B. True Chromosomes C. linked chromosomes D. known chromosomes Which option is correct and why?
The correct answer is: linked chromosomes.
C
What is a region of repetitive noncoding nucleotide sequences at each end of a chromosome?
[ "cellular", "cytoskeleton", "diploid", "telomere" ]
telomere
Answer the following multiple-choice question. Question: What is a region of repetitive noncoding nucleotide sequences at each end of a chromosome? Options: A. cellular B. cytoskeleton C. diploid D. telomere Which option is correct and why?
The correct answer is: telomere.
D
a form of alcohol is used to produce electricity by what?
[ "reducing heat", "burning", "spreading seeds", "sharing pressure", "deadly", "drinking", "consumers", "Decibels" ]
burning
Answer the following multiple-choice question. Question: a form of alcohol is used to produce electricity by what? Options: A. reducing heat B. burning C. spreading seeds D. sharing pressure E. deadly F. drinking G. consumers H. Decibels Which option is correct and why?
The correct answer is: burning.
B
A characteristic that are encoded in DNA
[ "job skills", "Plants growth", "Conifers", "career choices", "intelligence", "mammals", "deltas", "learned behavior" ]
intelligence
Answer the following multiple-choice question. Question: A characteristic that are encoded in DNA Options: A. job skills B. Plants growth C. Conifers D. career choices E. intelligence F. mammals G. deltas H. learned behavior Which option is correct and why?
The correct answer is: intelligence.
E
Earthworms help form and add what to soil
[ "Sediment", "organic material", "Converting waste.", "bacteria", "heat", "Chemical energy", "grass", "acidity" ]
organic material
Answer the following multiple-choice question. Question: Earthworms help form and add what to soil Options: A. Sediment B. organic material C. Converting waste. D. bacteria E. heat F. Chemical energy G. grass H. acidity Which option is correct and why?
The correct answer is: organic material.
B
When two plates of continental crust collide, the material pushes upward and forms what?
[ "low mountain range", "valleys", "fault lines", "high mountain range" ]
high mountain range
Answer the following multiple-choice question. Question: When two plates of continental crust collide, the material pushes upward and forms what? Options: A. low mountain range B. valleys C. fault lines D. high mountain range Which option is correct and why?
The correct answer is: high mountain range.
D
What causes the body to get hot
[ "energy", "walking", "cigarettes", "Pesticides", "our star", "sun's heat", "heat", "friction" ]
walking
Answer the following multiple-choice question. Question: What causes the body to get hot Options: A. energy B. walking C. cigarettes D. Pesticides E. our star F. sun's heat G. heat H. friction Which option is correct and why?
The correct answer is: walking.
B
Mutations which benefit the organism in which they occur are known as?
[ "helpful mutations", "extraordinary mutations", "beneficial mutations", "healthy mutations" ]
beneficial mutations
Answer the following multiple-choice question. Question: Mutations which benefit the organism in which they occur are known as? Options: A. helpful mutations B. extraordinary mutations C. beneficial mutations D. healthy mutations Which option is correct and why?
The correct answer is: beneficial mutations.
C
Water vapor causes what to form?
[ "clouds", "glass", "excretion", "oceans", "trees", "heat", "air", "bees" ]
clouds
Answer the following multiple-choice question. Question: Water vapor causes what to form? Options: A. clouds B. glass C. excretion D. oceans E. trees F. heat G. air H. bees Which option is correct and why?
The correct answer is: clouds.
A
What is the smallest independently functioning unit of a living organism?
[ "proteins", "molecule", "atom", "cell" ]
cell
Answer the following multiple-choice question. Question: What is the smallest independently functioning unit of a living organism? Options: A. proteins B. molecule C. atom D. cell Which option is correct and why?
The correct answer is: cell.
D
A bird that finds itself endangered is
[ "sees others of its species in large amounts", "friendly with many other birds", "glad to have so much company", "unlikely to meet more of its type" ]
unlikely to meet more of its type
Answer the following multiple-choice question. Question: A bird that finds itself endangered is Options: A. sees others of its species in large amounts B. friendly with many other birds C. glad to have so much company D. unlikely to meet more of its type Which option is correct and why?
The correct answer is: unlikely to meet more of its type.
D
What is deposited in flood plains when a river floods?
[ "bamboo", "detritus", "shrub beds", "rocks", "music", "filtered water", "minerals", "ice" ]
minerals
Answer the following multiple-choice question. Question: What is deposited in flood plains when a river floods? Options: A. bamboo B. detritus C. shrub beds D. rocks E. music F. filtered water G. minerals H. ice Which option is correct and why?
The correct answer is: minerals.
A
Gasoline, natural gas, fuel oil, diesel fuel, jet fuel, coal, kerosene, and propane are examples of what type of fule?
[ "hydrocarbon fuel", "polymerization fuel", "nuclear fue", "electrolysis fuel" ]
hydrocarbon fuel
Answer the following multiple-choice question. Question: Gasoline, natural gas, fuel oil, diesel fuel, jet fuel, coal, kerosene, and propane are examples of what type of fule? Options: A. hydrocarbon fuel B. polymerization fuel C. nuclear fue D. electrolysis fuel Which option is correct and why?
The correct answer is: hydrocarbon fuel.
A
What term describes how closely packed the particles of matter are?
[ "space", "range", "mass", "density" ]
density
Answer the following multiple-choice question. Question: What term describes how closely packed the particles of matter are? Options: A. space B. range C. mass D. density Which option is correct and why?
The correct answer is: density.
D
What do vertebrates possess that is made up of repeating bony units?
[ "vertebral column", "spinal cord", "skull", "notochord" ]
vertebral column
Answer the following multiple-choice question. Question: What do vertebrates possess that is made up of repeating bony units? Options: A. vertebral column B. spinal cord C. skull D. notochord Which option is correct and why?
The correct answer is: vertebral column.
A
What substance do the leaves of plants take in from the environment?
[ "oxygen", "acid rain", "hydrogen", "carbon dioxide" ]
carbon dioxide
Answer the following multiple-choice question. Question: What substance do the leaves of plants take in from the environment? Options: A. oxygen B. acid rain C. hydrogen D. carbon dioxide Which option is correct and why?
The correct answer is: carbon dioxide.
D
The formation of more mitochondia does what?
[ "increases a body's strength", "lowered energy cost", "absorb light energy", "Plant growth is reduced", "They grow better", "to move people", "Help plants grow", "duplicate itself" ]
increases a body's strength
Answer the following multiple-choice question. Question: The formation of more mitochondia does what? Options: A. increases a body's strength B. lowered energy cost C. absorb light energy D. Plant growth is reduced E. They grow better F. to move people G. Help plants grow H. duplicate itself Which option is correct and why?
The correct answer is: increases a body's strength.
A
in the presence heat, which of these comes about?
[ "a piece of gum", "a slurpy at the cafeteria", "an ice cream cone", "a large metamorphic rock" ]
a large metamorphic rock
Answer the following multiple-choice question. Question: in the presence heat, which of these comes about? Options: A. a piece of gum B. a slurpy at the cafeteria C. an ice cream cone D. a large metamorphic rock Which option is correct and why?
The correct answer is: a large metamorphic rock.
D
In addition to a slippery road, blizzards can be dangerous to drive in because
[ "you may only see a car in front of you when it's too late", "snow might break your windshield", "a lot of deer like to travel during blizzards", "a tornado is likely to pick up your car" ]
you may only see a car in front of you when it's too late
Answer the following multiple-choice question. Question: In addition to a slippery road, blizzards can be dangerous to drive in because Options: A. you may only see a car in front of you when it's too late B. snow might break your windshield C. a lot of deer like to travel during blizzards D. a tornado is likely to pick up your car Which option is correct and why?
The correct answer is: you may only see a car in front of you when it's too late.
A
If someone has a bag of old sandwich wrappers, they way that they can do damage to the area they live in is to
[ "recycle them", "re-purpose them", "discard them", "reuse them" ]
discard them
Answer the following multiple-choice question. Question: If someone has a bag of old sandwich wrappers, they way that they can do damage to the area they live in is to Options: A. recycle them B. re-purpose them C. discard them D. reuse them Which option is correct and why?
The correct answer is: discard them.
C
What are the two types of semiconductors?
[ "o-type and p-type", "n-type and m-type", "a-type and b-type", "n-type and p-type" ]
n-type and p-type
Answer the following multiple-choice question. Question: What are the two types of semiconductors? Options: A. o-type and p-type B. n-type and m-type C. a-type and b-type D. n-type and p-type Which option is correct and why?
The correct answer is: n-type and p-type.
D
A cast iron stove uses what as fuel
[ "lasers", "timber", "light", "sound" ]
timber
Answer the following multiple-choice question. Question: A cast iron stove uses what as fuel Options: A. lasers B. timber C. light D. sound Which option is correct and why?
The correct answer is: timber.
B
How does heat make an object hot?
[ "temperature", "high", "transfer", "It expands", "frozen", "Evaporation", "electricity", "sunlight" ]
transfer
Answer the following multiple-choice question. Question: How does heat make an object hot? Options: A. temperature B. high C. transfer D. It expands E. frozen F. Evaporation G. electricity H. sunlight Which option is correct and why?
The correct answer is: transfer.
C
Powdered substances such as oregano and pepper that are used to add flavor to foods come from
[ "beef", "petroleum", "cheese", "producers" ]
producers
Answer the following multiple-choice question. Question: Powdered substances such as oregano and pepper that are used to add flavor to foods come from Options: A. beef B. petroleum C. cheese D. producers Which option is correct and why?
The correct answer is: producers.
D
Gasoline is unable to exist without the addition of raw materials such as
[ "air", "water", "sand", "fossilized matter" ]
fossilized matter
Answer the following multiple-choice question. Question: Gasoline is unable to exist without the addition of raw materials such as Options: A. air B. water C. sand D. fossilized matter Which option is correct and why?
The correct answer is: fossilized matter.
D
What does a fire require to burn?
[ "A transportation fuel", "Something with exactly 2 protons", "chemical to mechanical energy", "Something with exactly eight protons", "Something with exactly 1 proton", "Burning fuel and air", "igniting fuel and oxidiser", "Something with 7 protons" ]
Something with exactly eight protons
Answer the following multiple-choice question. Question: What does a fire require to burn? Options: A. A transportation fuel B. Something with exactly 2 protons C. chemical to mechanical energy D. Something with exactly eight protons E. Something with exactly 1 proton F. Burning fuel and air G. igniting fuel and oxidiser H. Something with 7 protons Which option is correct and why?
The correct answer is: Something with exactly eight protons.
D
A light bulb turns on when it receives energy from
[ "a cable", "an oven", "gasoline", "a person" ]
a cable
Answer the following multiple-choice question. Question: A light bulb turns on when it receives energy from Options: A. a cable B. an oven C. gasoline D. a person Which option is correct and why?
The correct answer is: a cable.
A
If a thing is electrically insulated, then it is
[ "wood inside, metal inside", "a random mixture of materials", "metal inside, metal outside", "metal inside, other material outside" ]
metal inside, other material outside
Answer the following multiple-choice question. Question: If a thing is electrically insulated, then it is Options: A. wood inside, metal inside B. a random mixture of materials C. metal inside, metal outside D. metal inside, other material outside Which option is correct and why?
The correct answer is: metal inside, other material outside.
D
What is pressed against when mammals breathe?
[ "objects that have mass", "the skin", "an organism's body", "an object", "layers of fat", "matter vibrating", "a cuticle", "stomach muscles" ]
stomach muscles
Answer the following multiple-choice question. Question: What is pressed against when mammals breathe? Options: A. objects that have mass B. the skin C. an organism's body D. an object E. layers of fat F. matter vibrating G. a cuticle H. stomach muscles Which option is correct and why?
The correct answer is: stomach muscles.
A
What is the term for the visible part of the electromagnetic spectrum?
[ "gravity", "electricity", "chroma", "light" ]
light
Answer the following multiple-choice question. Question: What is the term for the visible part of the electromagnetic spectrum? Options: A. gravity B. electricity C. chroma D. light Which option is correct and why?
The correct answer is: light.
D
The point in front of a mirror where the reflected rays intersect is known as what?
[ "boundary point", "periodic point", "focal point", "reflective point" ]
focal point
Answer the following multiple-choice question. Question: The point in front of a mirror where the reflected rays intersect is known as what? Options: A. boundary point B. periodic point C. focal point D. reflective point Which option is correct and why?
The correct answer is: focal point.
C
What are some mountains caused by?
[ "Physical weathering", "saucers", "ice wedging", "alluvial", "animals", "detritus", "aliens", "Wind and rain" ]
Wind and rain
Answer the following multiple-choice question. Question: What are some mountains caused by? Options: A. Physical weathering B. saucers C. ice wedging D. alluvial E. animals F. detritus G. aliens H. Wind and rain Which option is correct and why?
The correct answer is: Wind and rain.
A
Many animals ways of getting rid of extra heat makes bodily what decrease
[ "solutes", "death", "water", "Energy.", "energy", "matter", "low pHs", "Weight" ]
water
Answer the following multiple-choice question. Question: Many animals ways of getting rid of extra heat makes bodily what decrease Options: A. solutes B. death C. water D. Energy. E. energy F. matter G. low pHs H. Weight Which option is correct and why?
The correct answer is: water.
C
What kind of joints allow for a wide range of flexibility?
[ "pivot", "lever", "ball and socket", "anchor" ]
ball and socket
Answer the following multiple-choice question. Question: What kind of joints allow for a wide range of flexibility? Options: A. pivot B. lever C. ball and socket D. anchor Which option is correct and why?
The correct answer is: ball and socket.
C
Fertilization occurs when an egg and what join together to form a diploid zygote?
[ "rapid expansion", "testosterone", "gastropod shells", "penis", "peachleaf willow", "pollen", "male hormone", "male gamete" ]
male gamete
Answer the following multiple-choice question. Question: Fertilization occurs when an egg and what join together to form a diploid zygote? Options: A. rapid expansion B. testosterone C. gastropod shells D. penis E. peachleaf willow F. pollen G. male hormone H. male gamete Which option is correct and why?
The correct answer is: male gamete.
A
What is the process where light bounces back from surfaces that it cannot pass through?
[ "reflection", "diffraction", "absorbtion", "direction" ]
reflection
Answer the following multiple-choice question. Question: What is the process where light bounces back from surfaces that it cannot pass through? Options: A. reflection B. diffraction C. absorbtion D. direction Which option is correct and why?
The correct answer is: reflection.
A
Heat and light are forms of what, which refers to the ability to do work?
[ "waves", "food", "fuel", "energy" ]
energy
Answer the following multiple-choice question. Question: Heat and light are forms of what, which refers to the ability to do work? Options: A. waves B. food C. fuel D. energy Which option is correct and why?
The correct answer is: energy.
D
Puberty leads to sexual changes that travel throughout the body in what?
[ "blood", "A drug.", "hair", "sleep", "painful", "years", "eyes", "chest" ]
blood
Answer the following multiple-choice question. Question: Puberty leads to sexual changes that travel throughout the body in what? Options: A. blood B. A drug. C. hair D. sleep E. painful F. years G. eyes H. chest Which option is correct and why?
The correct answer is: blood.
A
what impact does smoking have?
[ "Dehydration", "good", "negative", "dangerous", "liver cancer", "healthy", "wellness", "cancer" ]
negative
Answer the following multiple-choice question. Question: what impact does smoking have? Options: A. Dehydration B. good C. negative D. dangerous E. liver cancer F. healthy G. wellness H. cancer Which option is correct and why?
The correct answer is: negative.
C
What is a basis for natural selection?
[ "fur and fat", "competition", "mutation", "root growth", "insects", "animals", "trees", "cows" ]
mutation
Answer the following multiple-choice question. Question: What is a basis for natural selection? Options: A. fur and fat B. competition C. mutation D. root growth E. insects F. animals G. trees H. cows Which option is correct and why?
The correct answer is: mutation.
C
How do you determine the atomic weight of an element?
[ "subtract protons from electrons", "add up protons and neutrons", "divide protons and neutrons", "multiply protons and neutrons" ]
add up protons and neutrons
Answer the following multiple-choice question. Question: How do you determine the atomic weight of an element? Options: A. subtract protons from electrons B. add up protons and neutrons C. divide protons and neutrons D. multiply protons and neutrons Which option is correct and why?
The correct answer is: add up protons and neutrons.
B
What complex carbohydrates are the polymers of glucose?
[ "starches", "sugars", "fruits", "fats" ]
starches
Answer the following multiple-choice question. Question: What complex carbohydrates are the polymers of glucose? Options: A. starches B. sugars C. fruits D. fats Which option is correct and why?
The correct answer is: starches.
A
A neutral atom that loses an electron becomes what?
[ "a solute", "nucleus", "an object", "iron", "sugar", "dormant", "inactive", "an ion" ]
an ion
Answer the following multiple-choice question. Question: A neutral atom that loses an electron becomes what? Options: A. a solute B. nucleus C. an object D. iron E. sugar F. dormant G. inactive H. an ion Which option is correct and why?
The correct answer is: an ion.
A
what causes tremors?
[ "tectonic plates coliding", "fissures of hot, acidic water", "sensory neurons", "energy of moving objects", "Thyroid-stimulating hormone", "storms", "the sun", "richter scale" ]
tectonic plates coliding
Answer the following multiple-choice question. Question: what causes tremors? Options: A. tectonic plates coliding B. fissures of hot, acidic water C. sensory neurons D. energy of moving objects E. Thyroid-stimulating hormone F. storms G. the sun H. richter scale Which option is correct and why?
The correct answer is: tectonic plates coliding.
A