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1 value
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683
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481 values
sciq-6589
multiple_choice
Every species has a characteristic number of what?
[ "DNA", "ribosomes", "chromosomes", "receptors" ]
C
sciq-2267
multiple_choice
What helps treat bacterial infections in people?
[ "rest", "vaccines", "antibiotic drugs", "respiratory drugs" ]
C
sciq-2085
multiple_choice
What play an important role in the modulation of the nuclear chain reaction?
[ "control neutrons", "control rods", "radiation rods", "particle rods" ]
B
ai2_arc-364
multiple_choice
Both hurricanes and tornadoes always ___.
[ "cause flooding", "are hundreds of miles wide", "have high winds", "produce light snow" ]
C
sciq-7030
multiple_choice
Portal veins carry blood between what?
[ "digestive organs", "chambers of the heart", "arteries", "pairs of capillary beds" ]
D
sciq-1111
multiple_choice
Where do all plants come from?
[ "phylogenetic ancestors", "terrestrial ancestors", "cetacean ancestors", "distant ancestors" ]
B
sciq-1536
multiple_choice
Mollusks, annelids, and arthropods are considered what?
[ "protisines", "detritivores", "protostomes", "micelles" ]
C
sciq-6479
multiple_choice
What kind of light bulb contains a thin wire filament made of tungsten that gets hot and glows?
[ "incandescent", "black light", "LED", "fluorescent" ]
A
sciq-1057
multiple_choice
What is the largest artery in the body called?
[ "aorta", "femoral", "subclavian", "carotid" ]
A
sciq-1786
multiple_choice
What do you call aquatic biomes in the ocean?
[ "marine biomes", "coastal biomes", "ocean dwellers", "freshwater biomes" ]
A
sciq-8212
multiple_choice
What is the process of breaking down food into components the body can absorb called?
[ "absorption", "digestion", "filtration", "excretion" ]
B
sciq-5157
multiple_choice
In the case of the wheelbarrow, the output force or load is between the pivot and the what?
[ "input force", "velocity force", "density force", "Driving Force" ]
A
sciq-10808
multiple_choice
What are groups of tens to hundreds of thousands of stars held tightly together by gravity called?
[ "elliptical clusters", "globular clusters", "galaxy", "elongated clusters" ]
B
sciq-2760
multiple_choice
What can be used to mechanically separate the two elements by attracting the iron filings out of the mixture and leaving the sulfur behind?
[ "centrifuge", "magnet", "laser", "graduated cylinder" ]
B
sciq-9517
multiple_choice
Most lipids in your diet should be what type, found mainly in plant sources and also in fish?
[ "aromatic", "fat", "unsaturated", "saturated" ]
C
sciq-3112
multiple_choice
The major fuel for the brain is which carbohydrate?
[ "glutamate", "sucrose", "glucose", "insulin" ]
C
sciq-5486
multiple_choice
What are bacteria that stain purple are called?
[ "gram-positive bacteria", "gram-neutral bacteria", "complex bacteria", "gram-negative bacteria" ]
A
sciq-7910
multiple_choice
Where do all cells come from?
[ "pre-existing cells", "dying cells", "large cells", "busy cells" ]
A
sciq-4836
multiple_choice
What is caused when circulating blood puts pressure on the walls of blood vessels?
[ "atherosclerosis", "aneurysm", "high cholesterol", "blood pressure" ]
D
sciq-4004
multiple_choice
A rise in blood glucose levels triggers the pancreatic release of what hormone?
[ "insulin", "estrogen", "testosterone", "hemoglobin" ]
A
sciq-4813
multiple_choice
While light travels at different speeds in different kinds of matter, the speed of light is constant in what condition?
[ "outer space", "under water", "through glass", "vacuum" ]
D
sciq-10711
multiple_choice
What kind of charge do iconic compounds have?
[ "net positive charge", "net negative charge", "white neutral charge", "net neutral charge" ]
D
sciq-9211
multiple_choice
How is the energy of an atomic orbital affected as the principal quantum number increases?
[ "It triples", "it increases", "it decreases", "It doubles" ]
B
ai2_arc-801
multiple_choice
Which of the following statements best explains why the tilt of Earth on its axis causes summer to be warmer than winter in the Northern Hemisphere?
[ "The warm ocean currents flow from the tropics to the Northern Hemisphere in the summer.", "The rays of the Sun strike the Northern Hemisphere more directly in the summer.", "The greenhouse effect increases in the Northern Hemisphere in the summer.", "The Northern Hemisphere is closer to the Sun in the summer." ]
B
sciq-3615
multiple_choice
What prevents soil erosion on a hillside that is being farmed?
[ "irrigation", "no-till farming", "slash-and-burn", "terracing" ]
D
sciq-2990
multiple_choice
What are the gas giants mostly made of .
[ "hydrogen and carbon", "nitrogen and helium", "hydrogen and helium", "calcium and helium" ]
C
sciq-5996
multiple_choice
The leaf chameleon (brookesia micra) was discovered in northern madagascar in 2012. at just over one inch long, it is what?
[ "largest chameleon", "smallest known chameleon", "first known chameleon", "hottest known chameleon" ]
B
sciq-11176
multiple_choice
What normal bodily occurrence can cause skeletal muscles to involuntarily contract?
[ "respiration", "reflexes", "movement", "thinking" ]
B
sciq-8602
multiple_choice
Wind is one method for dispersal of what, ensuring a new generation?
[ "eggs", "seeds", "clouds", "dust" ]
B
sciq-8886
multiple_choice
What have cell-surface antigen receptors for foreign molecules?
[ "erythrocytes", "dendrites", "capillaries", "lymphocytes" ]
D
sciq-8938
multiple_choice
What is stacked in layers in "layer cake geology"?
[ "sediment", "horizontal stata", "rock stata", "soil" ]
C
sciq-8995
multiple_choice
What can be switched off by a protein called the trp repressor?
[ "the cytokine", "the operon", "the genetic precursor", "the chaperone protein" ]
B
sciq-6453
multiple_choice
What are convection currents that occur far below the surface of the ocean called?
[ "deep currents", "subsequent currents", "waves", "flat currents" ]
A
sciq-9712
multiple_choice
Underground rock in a molten state is called?
[ "magma", "gaseous", "igneous", "lava" ]
A
sciq-11355
multiple_choice
What happens when the kidneys cannot remove wastes from the blood?
[ "tissue failure", "intestinal failure", "choanocyte failure", "kidney failure" ]
D
ai2_arc-350
multiple_choice
Which is a hypothesis that can be easily tested?
[ "The Moon causes high tides.", "During which season are the tides the highest?", "What is the phase of the Moon when tides are highest?", "When the Moon is full, the tides will be at their highest." ]
D
sciq-1088
multiple_choice
Cells infected with viruses secrete what example of early induced proteins, which travel to adjacent cells and induce them to make antiviral proteins, a sacrifice that protects the surrounding cells?
[ "hormones", "interferons", "metabolites", "prokaryotes" ]
B
sciq-10232
multiple_choice
What process starts with glucose and ends with two pyruvate molecules, a total of four atp molecules and two molecules of nadh?
[ "photosynthesis", "absorption", "secretion", "glycolysis" ]
D
sciq-1359
multiple_choice
What organism is the most disruptive towards the diversity of other species?
[ "humans", "bacteria", "reptiles", "insects" ]
A
sciq-1973
multiple_choice
What help should you use for disposing hazardous products?
[ "biohazard unit", "guidelines on label", "first aid kit", "call poison control" ]
B
sciq-4657
multiple_choice
Culprits in the common cold and aids, what infectious agents are far smaller and simpler than bacteria?
[ "pathogens", "viruses", "parasites", "poisons" ]
B
ai2_arc-951
multiple_choice
Which mass is undergoing the greatest amount of acceleration?
[ "1 kg subjected to a force of 1 N", "1 kg subjected to a force of 100 N", "100 kg subjected to a force of 1 N", "100 kg subjected to a force of 100 N" ]
B
sciq-9180
multiple_choice
What do seismic waves prove about the inner core?
[ "it is solid", "it is liquid", "it is layered", "it is hot" ]
A
sciq-11020
multiple_choice
What type of species can alternate between medusa and polyp forms?
[ "mollusks", "crocodilian", "chordata", "cnidarian" ]
D
sciq-121
multiple_choice
What does erosion do to pieces of broken rock?
[ "lead them", "moves them", "Cancel Them", "Smooth them" ]
B
sciq-4100
multiple_choice
What kind of motion characterizes waves?
[ "bending", "round", "repetitive", "breathing" ]
C
sciq-10962
multiple_choice
What is the relationship of multiple action potentials from a single cell resulting in a significant change in the membrane potential?
[ "nature summation", "bipolar summation", "temporal summation", "distinct summation" ]
C
sciq-5043
multiple_choice
What is the name of the outer layer of skin?
[ "the dermis", "hypodermis", "the epidermis", "endodermis" ]
C
sciq-7163
multiple_choice
Reaching conclusions about unobserved things on the basis of what has already been observed is known as what kind of reasoning?
[ "conductive", "inductive", "reductive", "primitive" ]
B
sciq-2609
multiple_choice
A boiler converts the chemical energy stored in fuel into what type of energy?
[ "atmospheric energy", "thermal energy", "Thermometric Energy", "ultraviolet energy" ]
B
sciq-10629
multiple_choice
What is the process of moving air into and out of the lungs called?
[ "insulation", "hydration", "ventilation", "naturalization" ]
C
scienceQA-1642
multiple_choice
How long is a potato?
[ "17 millimeters", "17 kilometers", "17 centimeters", "17 meters" ]
C
The best estimate for the length of a potato is 17 centimeters. 17 millimeters is too short. 17 meters and 17 kilometers are too long.
sciq-3700
multiple_choice
Tendons connecting the scapula to the humerus form what, which is the circle of tendons around the shoulder joint?
[ "knee cuff", "thigh cuff", "wrist cuff", "rotator cuff" ]
D
sciq-9605
multiple_choice
Which planet is the kuiper belt closest to?
[ "Jupiter", "Mars", "Venus", "neptune" ]
D
sciq-11468
multiple_choice
Birds actually have two basic types of feathers: flight feathers and?
[ "down feathers", "landing feathers", "colorful plumes", "shed feathers" ]
A
sciq-3922
multiple_choice
What state is achieved when the forward and reverse reactions proceed at equal rates?
[ "equality", "equilibrium", "neutrality", "constant" ]
B
sciq-4663
multiple_choice
What fibres are seen in some vertebrates that twitch at rates far faster than any human muscle?
[ "fast glycolytic fibres", "slow twitch fibres", "skeletal muscle fibers", "fast oxidative fibres" ]
C
sciq-5083
multiple_choice
What 'counting' instrument is used to measure radioactivity?
[ "Liquid Counter", "pryor counter", "geiger counter", "ellie counter" ]
C
sciq-10383
multiple_choice
Which currents distribute heat around the planet and have a large impact on climate?
[ "air", "surface", "electrical", "wind" ]
B
sciq-11000
multiple_choice
Both energy and heat can be expressed in units of what?
[ "joules", "ohms", "amperes", "velocities" ]
A
scienceQA-3311
multiple_choice
Select the living thing.
[ "paramecia", "swing set", "clay", "moai" ]
A
Clay is not a living thing. Clay does not have all of the traits of a living thing. It can be formed into different shapes, but it does not grow or respond to the world around it. It does not need food or water. A swing set is not a living thing. Swing sets do not have all of the traits of living things. They do not grow or respond to their environment. They do not need food or water. Paramecia are living things. Paramecia grow and respond to their environment. They need food and water. Paramecia are made up of just one cell. On average, paramecia are 200 micrometers long. That's just twice the width of a human hair! A moai is not a living thing. A moai is a statue that is shaped like a face. But it does not have all the traits of a living thing. It does not grow or respond to the world around it. It does not need food or water.
ai2_arc-21
multiple_choice
A signal from the brain to a muscle in the arm is transmitted by which structures?
[ "sensory neurons", "interneurons", "motor neurons", "mechanoreceptor neurons" ]
C
sciq-2518
multiple_choice
At the anode, liquid chloride ions are oxidized to what?
[ "Heavy Gas", "nitrogen gas", "chlorine gas", "elemental gas" ]
C
sciq-6813
multiple_choice
What signals the secretion of gastric acid?
[ "hormone", "leptin", "pepsin", "gastrin" ]
D
sciq-1856
multiple_choice
In vascular plants, do primary roots grow downward or to the side?
[ "it depends", "downward", "neither", "to the side" ]
B
sciq-7781
multiple_choice
Type 1 diabetes results in the pancreas not being able to make what ?
[ "hemoglobin", "sugar", "glucose", "insulin" ]
D
sciq-11402
multiple_choice
Ionic bonds are electrostatic attractions between two oppositely charged what?
[ "compounds", "molecules", "ions", "gasses" ]
C
sciq-7826
multiple_choice
What type of lipids contain the element phosphorus, carbon, hydrogen and oxygen?
[ "filaments", "phospholipids", "alleles", "eukaryotes" ]
B
sciq-5740
multiple_choice
What are invertebrate chordates that retain all four defining chordate traits as adults called?
[ "vertebrates", "sporozoans", "lancelets", "tunicates" ]
C
sciq-7312
multiple_choice
An element is defined by the number of ____ it contains?
[ "neutrons", "electrons", "particles", "protons" ]
D
sciq-4114
multiple_choice
What word describes a change in behavior that occurs as a result of experience?
[ "heredity", "learning", "taking", "applying" ]
B
sciq-10874
multiple_choice
What is the largest organelle in a eukaryotic cell?
[ "apoptosis", "nucleus", "cortex", "epidermis" ]
B
sciq-4245
multiple_choice
What are the ultimate source of genetic variation?
[ "proteins", "mutations", "parasites", "gravity" ]
B
sciq-7812
multiple_choice
What is igneous rock created from?
[ "volcanic ash", "carbon dioxide", "magma cooling", "magma aging" ]
C
sciq-6071
multiple_choice
Morphological and molecular data indicate that wings evolved how many times in insects?
[ "once", "twice", "many times", "never" ]
A
sciq-10889
multiple_choice
The human genome has how many more alu elements than the chimpanzee genome?
[ "six times", "two times", "three times", "ten" ]
C
sciq-8704
multiple_choice
Multiple sclerosis, huntington’s disease, and parkinson’s disease all affect what body system?
[ "circulatory system", "reproductive system", "lymph system", "nervous system" ]
D
sciq-4553
multiple_choice
Most fungi can reproduce in which 2 ways?
[ "sexually and autonomously", "binary fission and fusion", "sexually and binary fusion", "asexually and sexually" ]
D
sciq-5917
multiple_choice
The needle of a compass is made of what element?
[ "aluminum", "nickel", "iron", "tin" ]
C
sciq-6472
multiple_choice
What does convection within the earth's mantel cause?
[ "microorganisms to move", "volcanos", "plates to move", "hurricanes" ]
C
sciq-2716
multiple_choice
What do vectors possess that scalars do not?
[ "magnitude and direction", "height and polarity", "magnitude and weight", "direction and texture" ]
A
sciq-11408
multiple_choice
What is often a result of untreated atherosclerosis?
[ "cancer", "seizures", "heart disease", "a heart attack or stroke" ]
D
ai2_arc-499
multiple_choice
A pharmaceutical company develops a new antibiotic to treat pneumonia. After limited testing, the researchers conclude that the antibiotic seems to be effective. How can the researchers strengthen their conclusions?
[ "Test the antibiotic on human volunteers.", "Publish their results in a medical journal.", "Ask an independent lab to retest the antibiotic.", "Test the effectiveness of the antibiotic at killing other bacteria." ]
C
sciq-4625
multiple_choice
Colliding-beam accelerators create matter from what?
[ "magnetism", "sound", "energy", "minerals" ]
C
scienceQA-5081
multiple_choice
Select the vertebrate.
[ "barrel jellyfish", "redback spider", "sea turtle", "monarch butterfly" ]
C
A monarch butterfly is an insect. Like other insects, a monarch butterfly is an invertebrate. It does not have a backbone. It has an exoskeleton. Like other spiders, a redback spider is an invertebrate. It does not have a backbone. It has an exoskeleton. A sea turtle is a reptile. Like other reptiles, a sea turtle is a vertebrate. It has a backbone. Like other jellyfishes, a barrel jellyfish is an invertebrate. It does not have a backbone. It has a soft body.
sciq-2733
multiple_choice
What forms when cells start to grow out of control?
[ "inflammation", "moles", "fat", "tumor" ]
D
sciq-3145
multiple_choice
Lymph capillaries collect the fluid that leaks from blood capillaries and slowly return it to what system?
[ "muscular", "cardiovascular", "gastrointestinal", "circulatory" ]
B
scienceQA-56
multiple_choice
Select the reptile.
[ "eagle ray", "dwarf crocodile", "California newt", "harbor seal" ]
B
An eagle ray is a fish. It lives underwater. It has fins, not limbs. Rays have a different shape than many other fish. Rays are large and flat. They have wide, triangle-shaped fins that help them swim long distances. A harbor seal is a mammal. It has fur and feeds its young milk. Seals have flippers instead of arms! They use their flippers to swim underwater or to crawl on the beach. A dwarf crocodile is a reptile. It has scaly, waterproof skin. Crocodiles hunt their prey in or near water. A California newt is an amphibian. It has moist skin and begins its life in water. Some newts live in water. Other newts live on land but lay their eggs in water.
sciq-2931
multiple_choice
Nearly all apicomplexans are parasites of what?
[ "plants", "fungi", "stars", "animals" ]
D
sciq-8552
multiple_choice
Noble gases are monatomic because they only contain one of what?
[ "charges", "ions", "atoms", "molecules" ]
C
ai2_arc-167
multiple_choice
Elisa was classifying types of energy as either potential or kinetic. Which is a type of potential energy?
[ "sound energy", "radiant energy", "thermal energy", "chemical energy" ]
D
sciq-10787
multiple_choice
Data from paleontology offer insights into the early evolution of what?
[ "fungi", "acids", "cells", "neurons" ]
A
sciq-2294
multiple_choice
What is the biogeochemical cycle that recycles water called?
[ "water cycle", "water theory", "Liquid Cycle", "Water Table" ]
A
sciq-10004
multiple_choice
What must be overcome to change the motion of an object?
[ "density", "pressure", "inertia", "weight" ]
C
sciq-6017
multiple_choice
What is the largest taxonomic rank?
[ "domain", "sublet", "core", "top" ]
A
sciq-7716
multiple_choice
Air temperature changes as what increases?
[ "density", "pressure", "salinity", "altitude" ]
D
scienceQA-1493
multiple_choice
What do these two changes have in common? cutting a piece of rope breaking a stick in half
[ "Both are chemical changes.", "Both are caused by cooling.", "Both are caused by heating.", "Both are only physical changes." ]
D
Step 1: Think about each change. Cutting a piece of rope is a physical change. The rope is shorter after you cut it. But it is still made of the same type of matter as the uncut rope. Breaking a stick in half is a physical change. The stick gets broken into two pieces. But the pieces are still made of the same type of matter as the original stick. Step 2: Look at each answer choice. Both are only physical changes. Both changes are physical changes. No new matter is created. Both are chemical changes. Both changes are physical changes. They are not chemical changes. Both are caused by heating. Neither change is caused by heating. Both are caused by cooling. Neither change is caused by cooling.
sciq-2973
multiple_choice
What part of an animal helps to prevent water loss and gives support and protection?
[ "membrane", "cuticle", "exoskeleton", "backbone" ]
C
sciq-6697
multiple_choice
What type of power is generated using a nonrenewable resource?
[ "water power", "wind power", "solar power", "nuclear power" ]
D
sciq-5122
multiple_choice
Hydrocarbons are made up of carbon and what else?
[ "silicon", "hydrogen", "helium", "nitrogen" ]
B