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481 values
sciq-10090
multiple_choice
Normal blood is comprised of nearly half erythrocytes, which is another word for what cells?
[ "red blood cells", "plateletes", "monocytes", "white blood cells" ]
A
sciq-7770
multiple_choice
The loss of too much blood may lead to shock of what system?
[ "circulatory", "heart", "nervous", "Circular" ]
A
sciq-1537
multiple_choice
One of the simplest machines is the lever, which is a rigid bar pivoted at a fixed place called what?
[ "caliper", "wheel", "sling", "fulcrum" ]
D
ai2_arc-147
multiple_choice
Where does the energy from an earthquake originate?
[ "from a sudden increase in solar radiation striking Earth", "from the Moon's gravitational pull during a close orbit", "from rocks under stress shifting deep inside Earth", "from the weight of sediments pushing down on bedrock" ]
C
sciq-3148
multiple_choice
A plane mirror has a flat reflective surface and forms only which kind of images?
[ "virtual", "enlarged", "spherical", "reduced" ]
A
sciq-5519
multiple_choice
Tin is oxidized at the anode, while silver ion is reduced at?
[ "cathode", "anodyne", "iodine", "gamma" ]
A
sciq-4111
multiple_choice
All prokaryotic and some eukaryotic organisms reproduce through what method, where a parent passes all of its genetic material to the next generation?
[ "microscopic reproduction", "sexual reproduction", "organic reproduction", "asexual reproduction" ]
D
sciq-10587
multiple_choice
The mouth, stomach, esophagus, small intestine, and large intestine are all part of what organ system?
[ "respiratory", "lymphatic", "muscular", "digestive" ]
D
sciq-6769
multiple_choice
What unit of pressure is named for the scientist whose discoveries about pressure in fluids led to a law of the same name?
[ "joule", "pascal", "ohm", "newton" ]
B
sciq-6234
multiple_choice
What results when a warm air mass runs into a cold air mass?
[ "warm front", "cool front", "dry front", "rough front" ]
A
sciq-974
multiple_choice
Heterotrophic organisms use organic compounds, usually from other organisms, as a source of what basic element of life?
[ "hydrogen", "carbon", "oxygen", "monoxide" ]
B
sciq-4662
multiple_choice
In type 2 diabetes, body cells do not respond to normal amounts of what hormone?
[ "glucose", "hemoglobin", "insulin", "estrogen" ]
C
sciq-2335
multiple_choice
What is the name of a reactant in an enzymatic reaction?
[ "Scar", "substrate", "membrane", "tissues" ]
B
sciq-7467
multiple_choice
Ecosystem dynamics include more than the flow of energy and recycling of matter. ecosystems are also dynamic because they?
[ "recreate exactly alike", "never move", "stay the same", "change through time" ]
D
sciq-10641
multiple_choice
Plants are complex organisms with tissues organized into what?
[ "systems", "carbons", "organs", "families" ]
C
sciq-3598
multiple_choice
The primary substance that human cells, and ultimately human beings, are made up of is what?
[ "gas", "air", "water", "oil" ]
C
sciq-4432
multiple_choice
What type of cholesterol is commonly referred to as bad?
[ "hdl", "ldl", "unsaturated", "insulin" ]
B
sciq-2938
multiple_choice
We divide up the earth's seas into five what, which are really all interconnected?
[ "lakes", "continents", "ecosystems", "oceans" ]
D
sciq-3344
multiple_choice
Just as millions of different words are spelled with our 26-letter english alphabet, millions of different proteins are made with the 20 common what?
[ "peptides", "amino acids", "mutation acids", "enzymes" ]
B
sciq-8707
multiple_choice
An aquifer is an underground layer of rock that is saturated with what?
[ "ocean water", "oil", "wastewater", "groundwater" ]
D
sciq-11589
multiple_choice
When amino acids bind together, they form a long chain called what, which is an essential component of protein?
[ "polypeptide", "lipids", "peptide", "enzyme" ]
A
sciq-5089
multiple_choice
Another name for table salt is?
[ "sodium chloride", "dioxide chloride", "hydrogen chloride", "carbon chloride" ]
A
sciq-8042
multiple_choice
How many amino acids are arranged like "beads on a string" to form proteins?
[ "35", "25", "15", "20" ]
D
sciq-6579
multiple_choice
What biome is located between the temperate and tropical biomes?
[ "Tropical", "subtropical", "Desert", "mountainous" ]
B
scienceQA-6576
multiple_choice
In this food web, which organism contains matter that eventually moves to the parasol fungus?
[ "gray fox", "swallowtail caterpillar", "black racer", "bobcat" ]
B
Use the arrows to follow how matter moves through this food web. For each answer choice, try to find a path of arrows to the parasol fungus.There are two paths matter can take from the swallowtail caterpillar to the parasol fungus: swallowtail caterpillar->pine vole->parasol fungus. swallowtail caterpillar->black bear->parasol fungus. gray fox. There are two arrows pointing from the gray fox to other organisms. One arrow points to the bobcat. The only arrow pointing from the bobcat leads to the bolete fungus. The other arrow pointing from the gray fox leads to the bolete fungus. No arrows point from the bolete fungus to any other organisms. So, in this food web, matter does not move from the gray fox to the parasol fungus.. black racer. The only arrow pointing from the black racer leads to the bolete fungus. No arrows point from the bolete fungus to any other organisms. So, in this food web, matter does not move from the black racer to the parasol fungus.. There is one path matter can take from the silver maple to the parasol fungus: silver maple->beaver->black bear->parasol fungus. bobcat. The only arrow pointing from the bobcat leads to the bolete fungus. No arrows point from the bolete fungus to any other organisms. So, in this food web, matter does not move from the bobcat to the parasol fungus..
sciq-10175
multiple_choice
Most vascular plants are seed plants, also known as?
[ "spermatophytes", "fungus", "bacteria", "sporozoans" ]
A
scienceQA-3413
multiple_choice
What do these two changes have in common? slicing cheese carving a piece of wood
[ "Both are caused by heating.", "Both are chemical changes.", "Both are caused by cooling.", "Both are only physical changes." ]
D
Step 1: Think about each change. Slicing cheese is a physical change. The cheese changes shape. But it is still made of the same type of matter. Carving a piece of wood is a physical change. The wood changes shape, but it is still made of the same type of matter. 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-5924
multiple_choice
What happens when alkanes are mixed with oxygen at room temperature?
[ "combustion", "no reaction", "redox", "single replacement" ]
B
sciq-1756
multiple_choice
Different elements differ in the size, mass, and other properties of what fundamental structures?
[ "particles", "atoms", "ions", "compounds" ]
B
sciq-9469
multiple_choice
What is a dip slip fault where the dip of the fault plane is vertical?
[ "reverse slip", "strike-slip", "strike - theory", "incline slip" ]
B
sciq-5979
multiple_choice
Sponges possess an internal skeleton called what?
[ "endoskeleton", "hydrostatic skeleton", "fluid skeleton", "exoskelton" ]
A
sciq-6670
multiple_choice
What type of behavior has the advantage of being flexible and capable of changing to suit changing conditions?
[ "noted behavior", "learned behavior", "saved behavior", "inherited behavior" ]
B
sciq-21
multiple_choice
What is the termination of a pregnancy in progress called?
[ "contraception", "abortion", "delivery", "miscarriage" ]
B
sciq-6336
multiple_choice
While the numerical aperture can be used to compare resolutions of various objectives, it does not indicate how far the lens could be from the what?
[ "specimen", "focal point", "diameter", "microscope" ]
A
sciq-5007
multiple_choice
What kind of harm does a corrosive substance cause?
[ "Attracts dust", "eats through objects", "Rust objects", "Builds a crust" ]
B
sciq-63
multiple_choice
What's the term for the gradual progression from simple plants to larger more complex ones in an area?
[ "complex progression", "pattern progression", "primary succession", "primary pattern" ]
C
sciq-4697
multiple_choice
An object's energy due to motion is known as?
[ "thermodynamic energy", "inertia", "residual energy", "kinetic energy" ]
D
sciq-8030
multiple_choice
Animals that live in groups with other members of their species are called what?
[ "common animals", "social animals", "energetic animals", "present animals" ]
B
ai2_arc-853
multiple_choice
In early 2003, the Human Genome Project identified the sequence of base pairs in the genes in human DNA. With all of this information, many of the functions of the genes are still unknown. Currently, scientists are studying many of these genes in order to learn more about them. What is the significance of this new genetic discovery?
[ "It can provide new methods for creating diseases.", "It can lead to faster chromosome replication.", "It can lead to a simpler structure for DNA.", "It can provide new ways to treat diseases." ]
D
sciq-2801
multiple_choice
What were the first photosynthetic organisms on earth?
[ "mosses", "bacteria", "fungi", "trees" ]
B
sciq-307
multiple_choice
What term describes a collection of similar cells that had a common embryonic origin?
[ "tissue", "nucleus", "plasma", "organ-level organization" ]
A
sciq-28
multiple_choice
What is defined as a change in the inherited traits of organisms over time?
[ "evolution", "divergence", "variation", "generation" ]
A
sciq-5654
multiple_choice
What is the measure of the amount of space occupied by an object?
[ "volume", "liquid", "growth", "mass" ]
A
sciq-4715
multiple_choice
Prokaryotic cells can only regulate gene expression by controlling the amount of what?
[ "RNA processing", "folding", "transcription", "translation" ]
C
sciq-7217
multiple_choice
Who proposed that everything in the universe exerts a force of attraction on everything else?
[ "wilson", "newton", "einstein", "bell" ]
B
sciq-2915
multiple_choice
How is energy expressed when it is released in a chemical reaction?
[ "as negative number", "as an equation", "as a percentage", "as a positive number" ]
A
sciq-9141
multiple_choice
Pressure and ________ are directly proportional at a constant volume?
[ "precipitation", "temperature", "speed", "heating" ]
B
sciq-6595
multiple_choice
What is the term for when gravity pulls soil, mud, and rocks down cliffs and hillsides?
[ "mass movement", "mass pressure", "avalanche", "mass momentum" ]
A
sciq-9340
multiple_choice
What, now former, planet is small, icy, and rocky?
[ "jupiter", "pluto", "mercury", "neptune" ]
B
sciq-6005
multiple_choice
What particles allow fungi to reproduce through unfavorable conditions?
[ "atoms", "bosons", "spores", "quarks" ]
C
sciq-5341
multiple_choice
The pituitary gland is called the “master gland” of what system?
[ "endocrine", "hormonal", "digestive", "nervous" ]
A
sciq-10745
multiple_choice
Which period after birth has the most rapid growth?
[ "early childhood", "adolescence", "infancy", "middle childhood" ]
C
sciq-4555
multiple_choice
When a metal is oxidized and a nonmetal is reduced in a redox reaction, what is the resulting compound called?
[ "magnetic compound", "ionic compound", "soluble compound", "alloy" ]
B
sciq-2835
multiple_choice
Wavelength and frequency are defined in the same way for electromagnetic waves as they are for which other waves?
[ "mechanical", "light", "sonar", "gravitational" ]
A
scienceQA-5517
multiple_choice
What do these two changes have in common? an iceberg melting slowly carving a piece of wood
[ "Both are caused by cooling.", "Both are chemical changes.", "Both are caused by heating.", "Both are only physical changes." ]
D
Step 1: Think about each change. An iceberg melting is a change of state. So, it is a physical change. An iceberg is made of frozen water. As it melts, the water changes from a solid to a liquid. But a different type of matter is not formed. Carving a piece of wood is a physical change. The wood changes shape, but it is still made of the same type of matter. 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. An iceberg melting is caused by heating. But carving a piece of wood is not. Both are caused by cooling. Neither change is caused by cooling.
sciq-4892
multiple_choice
How do humans learn behaviors?
[ "conditioning", "pressure", "Aural pressure", "Verbal pressure" ]
A
sciq-8510
multiple_choice
Although individuals of a given species are genetically similar, they are not identical; every individual has a unique set of these?
[ "traits", "mutations", "habits", "chromosomes" ]
A
sciq-1044
multiple_choice
How does air always flow?
[ "in to out", "high to low", "left to right", "low to high" ]
B
sciq-3040
multiple_choice
What two planets is the asteroid belt found between?
[ "saturn and uranus", "earth and venus", "mars and venus", "mars and jupiter" ]
D
sciq-7324
multiple_choice
What is the point on the ground that is located directly above where underground rocks fracture (or the "focus" point)?
[ "seismic point", "epicenter", "fault line", "danger zone" ]
B
sciq-7057
multiple_choice
What is the only substance on earth that is stable in all three states?
[ "air", "mercury", "water", "carbon" ]
C
sciq-814
multiple_choice
What are considered solid lipids that animals use to store energy?
[ "acids", "sugars", "proteins", "fats" ]
D
sciq-5232
multiple_choice
The eardrum is part of what part of the ear?
[ "main", "inner", "thin", "outer" ]
D
sciq-2055
multiple_choice
There are five primary tastes in humans: sweet, sour, bitter, salty, and what?
[ "tangy", "umami", "hot", "aroma" ]
B
sciq-7120
multiple_choice
Synostoses unite the sacral vertebrae that fuse together to form the what?
[ "permanent sacrum", "young sacrum", "adult sacrum", "lower sacrum" ]
C
ai2_arc-781
multiple_choice
Which of the following changes occurs as a solid is heated?
[ "The kinetic energy of the solid decreases.", "The average density of the solid increases.", "The specific heat capacity of the solid decreases.", "The average molecular speed in the solid increases." ]
D
sciq-4979
multiple_choice
What is the biggest group of animals on the planet?
[ "mammles", "arthropods", "carnivores", "herbivores" ]
B
sciq-11279
multiple_choice
What happens to structural genes in the presence of tryptophan?
[ "they are exterminated​", "they are transcribed", "they are not transcribed", "they are not oxidised" ]
C
sciq-856
multiple_choice
The milky way galaxy is which shape type of galaxy?
[ "helical", "cylindrical", "spherical", "spiral" ]
D
sciq-5000
multiple_choice
Like other amphibians, frogs generally lay their eggs in moist environments, which are required since the eggs lack what feature?
[ "tubes", "membrane", "shells", "nucleus" ]
C
sciq-9531
multiple_choice
A wildfire clears a forest of vegetation and animal life, returning their nutrients to the ground leaving a foundation for rapid recolonization. what is this a classic example of?
[ "typical succession", "primary succession", "cause succession", "secondary succession" ]
D
sciq-6349
multiple_choice
The only obvious difference between boys and girls at birth is what type of organs?
[ "reproductive", "digestive", "nervous", "respiratory" ]
A
sciq-6520
multiple_choice
What do atoms make by rearranging their chemical bonds in a reactant?
[ "minerals", "products", "solutions", "compounds" ]
B
sciq-6214
multiple_choice
In eukaryotes, the new mrna is not yet ready for translation. it must go through more processing before it leaves where?
[ "protons", "molecules", "nucleus", "Electrons" ]
C
ai2_arc-1067
multiple_choice
The Earth and the Moon have all of these common features except
[ "core.", "crust.", "water.", "mantle." ]
C
sciq-9166
multiple_choice
What is the addition of nucleotides to the mrna strand?
[ "elongation", "insertion", "elevation", "axons" ]
A
sciq-8650
multiple_choice
What sac, which was sitting on top of the flat embryo, envelops the embryo as it folds?
[ "amniotic sac", "uterus", "epithelial sac", "umbilical sac" ]
A
sciq-1498
multiple_choice
What kind of compounds are named for their positive metal ion first, followed by their negative nonmetal ion?
[ "horizontal compounds", "magnetic compounds", "ionic compounds", "magnetic compounds" ]
C
ai2_arc-406
multiple_choice
What best explains why some cooking pans have rubber handles?
[ "The rubber in the handles is easy to hold.", "The rubber in the handles is a good insulator.", "The rubber in the handles keeps the food in the pan hot.", "The rubber in the handles keeps the metal in the pan cool." ]
B
sciq-8599
multiple_choice
Hot material from near the sun’s center rises in which zone?
[ "thermosphere", "radiative zone", "drifting zone", "convection zone" ]
D
sciq-8905
multiple_choice
A rounded hollow carved in the side of a mountain by a glacier is known as?
[ "a crater", "a crest", "a cavern", "a cirque" ]
D
sciq-3170
multiple_choice
During the scientific revolution, who proposed that the sun, not earth, is the center of the solar system?
[ "janus", "Newton", "copernicus", "Galileo" ]
C
sciq-8358
multiple_choice
What is the basic unit of matter?
[ "neutron", "atom", "dark material", "nucleus" ]
B
sciq-8850
multiple_choice
When blood engorged capillaries leak fluid into neighboring tissues, what occurs?
[ "swelling", "seeping", "bleeding", "infection" ]
A
scienceQA-12567
multiple_choice
What do these two changes have in common? ice melting in a glass molding clay into the shape of a pot
[ "Both are caused by cooling.", "Both are caused by heating.", "Both are only physical changes.", "Both are chemical changes." ]
C
Step 1: Think about each change. Ice melting in a glass is a change of state. So, it is a physical change. The solid ice becomes liquid, but it is still made of water. A different type of matter is not made. Molding clay into the shape of a pot is a physical change. The clay gets a different shape. But it is made of the same type of matter. 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. Ice melting is caused by heating. But molding clay is not. Both are caused by cooling. Neither change is caused by cooling.
sciq-8233
multiple_choice
How do glucose, ions, and other larger molecules leave the blood?
[ "through capillary tips", "through intercellular clefts", "through veinous fissures", "through cell membranes" ]
B
sciq-4014
multiple_choice
Molecules of gas are rare in what outermost region of the planet's atmosphere?
[ "ionosphere", "thermosphere", "exosphere", "ozone layer" ]
C
sciq-9555
multiple_choice
What does the esophagus produce for lubrication?
[ "mucous", "synovial fluid", "bile", "phloem" ]
A
sciq-9536
multiple_choice
Where does most of the earth's energy come from?
[ "magnetic field", "its core", "its atmosphere", "sun" ]
D
sciq-10572
multiple_choice
What is the main difference between prokaryotic and eukaryotic cells?
[ "presence of cytoplasm", "absence of cytoplasm", "enlarged mitochondria", "presence of a nucleus" ]
D
sciq-8797
multiple_choice
Enzymes - proteins which speed up what?
[ "physical reactions", "liquid reactions", "chemical reactions", "crystals reactions" ]
C
sciq-9902
multiple_choice
What is the transition from liquid to gas is called?
[ "boiling", "condensing", "freezing", "melting" ]
A
sciq-6049
multiple_choice
What two types of juices help digestion within the small intestine?
[ "intestinal and pancreatic", "bile and lymph", "amniotic fluid, bile", "chyme and phloem" ]
A
sciq-3058
multiple_choice
What helps to regulate consciousness, arousal, and sleep states?
[ "thalamus", "hypothalamus", "hippocampus", "cerebral cortex" ]
A
sciq-1033
multiple_choice
What is the process of the fusion of a sperm and an egg called?
[ "embryo", "stimulation", "fertilization", "Sperm" ]
C
sciq-6254
multiple_choice
What has two chains of nucleotides, one more than rna?
[ "fna", "dna", "mna", "gna" ]
B
sciq-4982
multiple_choice
What are steroid hormones made of?
[ "amino acid", "lipids", "water", "organisms" ]
B
sciq-1659
multiple_choice
What is the fracture called when rocks on both sides move?
[ "a crevice", "a fault", "a shear", "a stress fracture" ]
B
ai2_arc-416
multiple_choice
Margaret is running a full lap around a circular track. She is facing north when she starts. What direction will she be facing after she has completed half of a lap?
[ "north", "south", "east", "west" ]
B
sciq-11321
multiple_choice
Via what process do substance move from one cell to another?
[ "reverse transferase", "plasmodesmata", "autolysis", "downregulation" ]
B