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Which area in a lake is likely to have more nutrients?
sciq-00700
[ "crust", "surface", "bottom", "reef" ]
C
Temperature is a measure of how hot or cold an object is relative to another object, whereas heat is the flow of what energy between objects with different temperatures?
sciq-00701
[ "potential energy", "thermal energy", "nuclear energy", "gravitational energy" ]
B
Scientists use seismographs and intersecting circles to determine the location of what?
sciq-00702
[ "earthquake epicenter", "hurricane", "tsunami", "volcano" ]
A
What happens when iron is exposed to water and oxygen?
sciq-00703
[ "smoking", "rusting", "combustion", "shrinking" ]
B
What disease is generally caused by mutations in genes that regulate the cell cycle?
sciq-00704
[ "cancer", "heart disease", "pneumonia", "arthritis" ]
A
Proteins are organic compounds made up of what type of acids?
sciq-00705
[ "lactic", "enzyme", "amino", "nucleic" ]
C
Speciation is usually due to a single instance of what?
sciq-00706
[ "accumulation", "mutation", "division", "radiation" ]
B
What is the name of the extra layer that prokaryotes have outside the cell wall?
sciq-00707
[ "a capsule", "a bone", "a shape", "a shell" ]
A
The binary halides are an important subclass of what?
sciq-00708
[ "gases", "acids", "minerals", "salts" ]
D
When was construction of the hoover dam completed?
sciq-00709
[ "1959", "1935", "1905", "1969" ]
B
Some plants can produce seeds without fertilization and this method of reproduction is known as what?
sciq-00710
[ "amoebas", "Density", "apomixis", "gametes" ]
C
What type of chains do unsaturated fatty acids have?
sciq-00711
[ "bent chains", "Stait Chains", "Broken Chains", "Spiral Chains" ]
A
Ribosomes are the site of what process?
sciq-00712
[ "protein synthesis", "organism synthesis", "consume synthesis", "Measure Synthesis" ]
A
Bacteria and archaea that survive under extreme conditions are called?
sciq-00713
[ "carotenoids", "rotifers", "extremophiles", "audiophiles" ]
C
The production and transport of gametes is performed by what type of organs?
sciq-00714
[ "reproductive", "degradation", "skin", "digestion" ]
A
What are atoms of the same element but with different numbers of neutrons called?
sciq-00715
[ "variations", "electrons", "masses", "isotopes" ]
D
Active transport mechanisms require the use of the cell’s energy, usually in the form of what?
sciq-00716
[ "ribonucleic acid (RNA)", "protein", "deoxyribonucleic acid (DNA)", "adenosine triphosphate (atp" ]
D
What kind of energy can move through glass much better than through paper?
sciq-00717
[ "sound", "heat", "light", "vibrational" ]
C
What forms when one substance dissolves into another?
sciq-00718
[ "mixture", "compound", "solution", "solvent" ]
C
What transition occurs as heat is added or removed from a substance?
sciq-00719
[ "diffusion transition", "thermal reaction", "phase transition", "heat wave" ]
C
What is the predicted year that as many as half of all remaining species could go extinct?
sciq-00720
[ "2040", "2020", "3000", "2050" ]
D
Which scientist developed the theory of evolution and detailed it in the book origin of species?
sciq-00721
[ "Gregor Mendel", "charles darwin", "Isaac Newton", "Carl Sagan" ]
B
Insects are the only invertebrates that can do what?
sciq-00722
[ "fly", "reproduce", "vocalize", "shed" ]
A
What basic structures, found in animals and plants, are organized into tissues, organs, and organ systems?
sciq-00723
[ "seeds", "proteins", "bones", "cells" ]
D
What do we call the phase of nuclear division, in which one nucleus divides and becomes two nuclei?
sciq-00724
[ "metaphase", "cytokinesis", "prometaphase", "mitosis" ]
D
In abalones and limpets, what is conical, but somewhat flattened?
sciq-00725
[ "the head", "the heart", "the bone", "the shell" ]
D
What are the physical properties of water and carbon dioxide affected by?
sciq-00726
[ "weather", "their polarities", "temperature", "weight" ]
B
Which one of newton's laws describes the direct relationship between force and acceleration?
sciq-00727
[ "third law", "first law", "fourth law", "second law" ]
D
The process by which creatures regulate body temperature from the outside through behavioral changes is known as what?
sciq-00728
[ "misiothermy", "exterior induction", "endothermy", "ectothermy" ]
D
Because of moving charged particles in its outer core, earth is what?
sciq-00729
[ "antenna", "transmitter", "magnet", "laser" ]
C
Color, taste, and melting point are examples of what kind of properties?
sciq-00730
[ "intensive properties", "extensive properties", "experimental properties", "sensory properties" ]
A
Amorphous selenium is a photosensitive what?
sciq-00731
[ "insulator", "semiconductor", "electromagnet", "diffusion" ]
B
When the rate of condensation becomes equal to the rate of vaporization, the vapor in the container is then said to be in what with the liquid?
sciq-00732
[ "equilibrium", "balance", "synchronization", "stability" ]
A
What are the sources of sexual spores in a basidiocarp?
sciq-00733
[ "annulus", "stamens", "conidia", "basidia" ]
D
Amylose and amylopectin are the two most common components of naturally occurring what?
sciq-00734
[ "chromosomes", "starch", "carbon", "protein" ]
B
Reactive, high polarized substances made of carbon bonded to one carbon atom and one hydrogen atom are known as what?
sciq-00735
[ "peptides", "proteins", "hydrocarbons", "aldehydes" ]
D
Relative humidity is related to the partial pressure of what in the air?
sciq-00736
[ "water vapor", "solid vapor", "air vapor", "gas vapor" ]
A
What are the two stages in the life cycle of a jellyfish?
sciq-00737
[ "witch and polyp", "banshee and polyp", "medusa and polyp", "archangel and polyp" ]
C
What part of the cell holds cell organelles in place within the cytoplasm?
sciq-00738
[ "nucleus", "cytoskeleton", "exoskeleton", "call wall" ]
B
What is the name for the process of insects transforming from a young insect to an adult?
sciq-00739
[ "spontaneous mutation", "maturation", "metamorphosis", "parthenogenesis" ]
C
Over time, heavy metals build up in the tissues of organisms by what process?
sciq-00740
[ "biosynthesis", "solidification", "oxygenation", "bioaccumulation" ]
D
Changes to what that delete, disrupt, or rearrange many loci at once are usually harmful?
sciq-00741
[ "ribosomes", "neutrons", "cells", "chromosomes" ]
D
The ability of a material to emit various wavelengths of light is similarly related to its?
sciq-00742
[ "specific gravity", "half-life", "molar mass", "atomic energy levels" ]
D
Divergent plate boundaries rift what landforms apart, leading to the formation of a new ocean between them?
sciq-00743
[ "mountains", "continents", "islands", "coasts" ]
B
What mineral is stored and is maintained at normal levels in blood by the skeletal system?
sciq-00744
[ "magnesium", "calcium", "selenium", "potassium" ]
B
What type of diseases are diseases that are caused by choices that people make in their daily lives?
sciq-00745
[ "benign diseases", "lifestyle diseases", "congenital diseases", "contagious diseases" ]
B
A barometer is a device that measures this?
sciq-00746
[ "water pressure", "temperature", "air pressure", "humidity" ]
C
What is the term for getting the same results when an experiment is repeated, which implies the results are valid?
sciq-00747
[ "verification", "evolution", "replication", "extraction" ]
C
Helices, spheres, and rods are examples of what distinguishing property of prokaryotic cells?
sciq-00748
[ "texture", "color", "shape", "size" ]
C
What is the term for the change in momentum vector?
sciq-00749
[ "gravity", "impulse", "release", "variation" ]
B
Larger molecules can have many, many of what that serve to keep the molecule together?
sciq-00750
[ "bonds", "tubes", "arms", "connections" ]
A
What makes nobel gases unreactive?
sciq-00751
[ "chemical reaction", "fusion", "magnetism", "its electon configuration" ]
D
Which joint allows humans to sit, stand, and pivot?
sciq-00752
[ "knee", "ankle", "hip", "femur" ]
A
What type of power is generated by splitting uranium atoms?
sciq-00753
[ "fossil fuel power", "solar power", "wind power", "nuclear power" ]
D
At any given temperature, not all of the particles of a sample of matter have the same energy of what type?
sciq-00754
[ "kinetic", "dark matter", "seismic", "magnetic" ]
A
Individual particles of a substance in what state are in fixed positions with respect to each other because there is not enough thermal energy to overcome the intermolecular interactions between the particles?
sciq-00755
[ "undivided", "stable", "solid", "structured" ]
C
What kind of feeders are sponges?
sciq-00756
[ "surface feeders", "bottom feeders", "filter feeders", "primary feeders" ]
C
It is the variety of what that gives rise to the incredible variation of protein structure and function?
sciq-00757
[ "organism acid side chains", "spastic acid side chains", "amino acid side chains", "clump acid side chains" ]
C
What do plant viruses have that protect their cells?
sciq-00758
[ "inner wall", "cell wall", "nuclei wall", "proteins wall" ]
B
What type of isotope can be used to treat diseases like cancer?
sciq-00759
[ "positive isotope", "radioactive isotopes", "negative isotope", "radiodecaying isotope" ]
B
What helps by releasing chemicals that control other lymphocytes?
sciq-00760
[ "interloper t cells", "controller t cells", "helper t cells", "discharger t cells" ]
C
What is the density needed to just halt universal expansion called?
sciq-00761
[ "instance density", "critical density", "stop density", "allow density" ]
B
In a nuclear power plant, what typically spins in order to produce electricity?
sciq-00762
[ "pipe", "turbine", "grid", "generator" ]
B
How do roots and stems grow?
sciq-00763
[ "evenly", "logically", "indeterminately", "orderly" ]
C
What are organic molecules that consist of carbon, hydrogen, and oxygen called?
sciq-00764
[ "electrolytes", "carbohydrates", "amino acids", "proteins" ]
B
The diploid sporophyte produces haploid spores by what process?
sciq-00765
[ "mitosis", "binary fission", "electrolysis", "meiosis" ]
D
What type of covalent bond is a covalent bond in which the bonding electrons are shared equally between the two atoms?
sciq-00766
[ "polar", "ionic", "nonpolar", "acidic" ]
C
What forms a barrier between the cytoplasm and the environment outside the cell?
sciq-00767
[ "the splatter membrane", "the cellular membrane", "the plasma membrane", "the mitochondria membrane" ]
C
Sponges are part of what phylum, which gets its name from the latin for "having pores"?
sciq-00768
[ "annelida", "porifera", "chordata", "mammalia" ]
B
Comets that have periods of 200 years or less are knows as what-period comets?
sciq-00769
[ "fast", "old", "short", "long" ]
C
The integumentary system helps regulate body temperature through its tight association with what system involved in our fight-or-flight responses?
sciq-00770
[ "autonomic nervous system", "circulatory system", "sympathetic nervous system", "endocrine system" ]
C
What in the air allows us to hear sound?
sciq-00771
[ "gases", "rain", "wind", "water" ]
A
What do you call the process in which a community changes through time?
sciq-00772
[ "ecological succession", "spontaneous mutation", "natural selection", "continuous succession" ]
A
What is the maximum horizontal distance traveled by a projectile?
sciq-00773
[ "range", "span", "length", "radius" ]
A
The axon is a long extension of the cell body that transmits what to other cells?
sciq-00774
[ "synthesis impulses", "calcium impulses", "nerve impulses", "blood impulses" ]
C
Fungi are now classified as their own kingdom. what kingdom were they previously a part of?
sciq-00775
[ "animals", "protozoa", "plants", "arthropods" ]
C
What is the term for small streams?
sciq-00776
[ "canals", "tributaries", "wetlands", "rivers" ]
B
A comparison of the human arm with a bat's wing demonstrates what principle of biology?
sciq-00777
[ "motion follows function", "form follows function", "attachment follows function", "size follows function" ]
B
What converters are used on motor vehicles to break down pollutants in exhaust to non-toxic compounds?
sciq-00778
[ "solvent converters", "outer converters", "back converters", "catalytic converters" ]
D
If a substance does not release molecules into the air from its surface, it will not have what?
sciq-00779
[ "color", "temperature", "smell", "taste" ]
C
What is the term for when deep ocean water rises to the surface?
sciq-00780
[ "percolating", "tsunami", "upwelling", "tidal waves" ]
C
What are collisions between gas particles and container walls called?
sciq-00781
[ "elastic collisions", "kinetic theory", "utilize collisions", "tubes collisions" ]
A
Cooling a mixture of equal parts nitric oxide and nitrogen dioxide to −21 °c produces what?
sciq-00782
[ "dinitrogen trioxide", "carbon trioxide", "nitrate trioxide", "chloride trioxide" ]
A
What is the most important element to life?
sciq-00783
[ "calcium", "nitrogen", "carbon", "hydrogen" ]
C
Each female of a particular species can produce millions of these per year?
sciq-00784
[ "seeds", "sperms", "eggs", "fetuses" ]
C
The cephalic phase (reflex phase) of gastric secretion, which is relatively brief, takes place before food enters where?
sciq-00785
[ "skin", "stomach", "Head", "respiratory" ]
B
What part of the earth does a compass needle align with?
sciq-00786
[ "gravitational field", "geospatial field", "molecular field", "magnetic field" ]
D
Parasitic chelicerates like ticks and mites have evolved what?
sciq-00787
[ "aileron apparatuses", "tunicates apparatuses", "licking apparatuses", "bloodsucking apparatuses" ]
D
Where do two tributaries come together at?
sciq-00788
[ "snake", "axis", "confluence", "stream" ]
C
The force exerted by the atmosphere on the earth’s surface can be measured with what instrument?
sciq-00789
[ "Geiger counter", "mass spectrometer", "anemometer", "barometer" ]
D
What are the substances that the body needs for energy, building materials, and control of body processes?
sciq-00790
[ "tissues", "liquids", "nutrients", "gases" ]
C
What term describes the energy required to increase the surface area of a liquid by a given amount?
sciq-00791
[ "elastic collision", "viscosity", "surface tension", "boiling point" ]
C
What is the term for the process of turning sunlight's energy into food?
sciq-00792
[ "atherosclerosis", "light compression", "photosynthesis", "glycolysis" ]
C
Because water expands when it freezes, what property of water is lower when it is in a solid state than a liquid?
sciq-00793
[ "density", "mass", "salinity", "volume" ]
A
What is released during dehydration synthesis?
sciq-00794
[ "photons", "helium", "air", "water" ]
D
What do plant cells have in addition to a cell wall and a large central vacuole?
sciq-00795
[ "chromosomes", "gastropods", "plastids", "DNA" ]
C
What is the only animal group that evolved to live on land and then back to live in the ocean?
sciq-00796
[ "birds", "reptiles", "mammals", "amphibians" ]
C
What has large crystals because the magma began to cool slowly, then erupted?
sciq-00797
[ "porphyry", "crystalline", "lava", "chalky" ]
A
What must be regulated in order to maintain carbon dioxide levels and proper blood ph?
sciq-00798
[ "Heart rate", "oxygen rate", "breathing rate", "blood toxin levels" ]
C
Cells may enter a period of rest known as what?
sciq-00799
[ "stationary phase", "interkinesis", "anaphase", "respiration" ]
B