id int64 0 999 | question stringlengths 17 246 | choices listlengths 4 4 | answer stringclasses 4
values |
|---|---|---|---|
400 | What system consists of organs that break down food and absorb nutrients such as glucose? | [
"skeletal system",
"physical system",
"digestive system",
"cardiovascular system"
] | C |
401 | What is the transition from solid to vapor is called? | [
"sublimation",
"vaporization",
"ionization",
"deposition"
] | A |
402 | In contrast with cnidarians, nematodes show a tubular morphology and circular cross-section. these animals are pseudocoelomates and show the presence of a complete digestive system with a distinct mouth and this? | [
"mucus",
"anus",
"stomach",
"hairs"
] | B |
403 | The amount of heat required to raise a single mass unit of a substance by a single temperature unit is known as what? | [
"specific heat",
"specific gravity",
"temperature variation",
"solitary heat"
] | A |
404 | What is the most important source of electromagnetic radiation on earth? | [
"the sun",
"the moon",
"the oceans",
"volcanos"
] | A |
405 | What kind of drugs are formulated to help deal with hiv and herpes as well as influenza and two types of hepatitis? | [
"antiviral drugs",
"steroid drugs",
"herbal remedies",
"antibacterial drugs"
] | A |
406 | Trees, which can be planted and harvested, are an example of what type of resource? | [
"fossil",
"geothermal",
"electric",
"renewable"
] | D |
407 | After a supernova, what part of a star remains? | [
"large",
"core",
"superficial",
"outer"
] | B |
408 | What is essential for population of all species to expand greatly? | [
"chemical resources",
"abundant resources",
"liquid resources",
"foliage resources"
] | B |
409 | What is usually the most visible part of the flower? | [
"roots",
"cells",
"seeds",
"petals"
] | D |
410 | What do ionic bonds form between? | [
"metals and nonmetals",
"metals and freshwaters",
"metals and organisms",
"metals and carbonates"
] | A |
411 | The interaction between atomic orbitals is greatest when they have the same what? | [
"temperature",
"mass",
"fuel",
"energy"
] | D |
412 | What occurs when competing species evolve different adaptations? | [
"urbanization",
"specialization",
"evolution",
"Rate Adaption"
] | B |
413 | Haversian canals contain blood vessels and what else? | [
"synovial fluid",
"nerve fibers",
"collagen fibers",
"muscle fibers"
] | B |
414 | What type of telescopes collect and focus radio waves from distant objects? | [
"refracting telescopes",
"space telescopes",
"radio telescopes",
"reflecting telescopes"
] | C |
415 | Cells have multiple repair mechanisms to fix mutations in what? | [
"organ systems",
"amino acid chains",
"dna",
"RNA"
] | C |
416 | What are different versions of a gene known as? | [
"modes",
"alleles",
"genomes",
"ion"
] | B |
417 | All chemical reactions involve both reactants and what else? | [
"energy",
"consumers",
"catalysts",
"products"
] | D |
418 | Potassium hydroxide in soap is an example of what? | [
"enzyme",
"base",
"catalyst",
"acid"
] | B |
419 | What is the process by which organisms give rise to offspring? | [
"differentiation",
"photosynthesis",
"reproduction",
"evolution"
] | C |
420 | Photosynthesis is an endothermic reaction that gets its energy from what? | [
"electricity",
"air",
"light",
"wind"
] | C |
421 | Paramecium possess tiny hair-like cilia that help them do what? | [
"look",
"fight",
"move",
"breed"
] | C |
422 | What is a complex machine that burns fuel to produce thermal energy and then uses the thermal energy to do work? | [
"convection oven",
"battery",
"combustion engine",
"vapor engine"
] | C |
423 | In both eukaryotes and prokaryotes, ribosomes are the non-membrane bound organelles where what main product of the cell is made? | [
"lipids",
"proteins",
"protons",
"sugars"
] | B |
424 | What is it called when ice changes to liquid water? | [
"melting",
"vaporizing",
"condensing",
"boiling"
] | A |
425 | Biological features from a common evolutionary origin are known as what? | [
"homologous",
"monologous",
"analogous",
"heterologous"
] | A |
426 | Salts that are neither acidic nor basic do not affect what property of the solution when dissolved in water? | [
"homeostasis",
"ph",
"density",
"saturation"
] | B |
427 | What protects the pollen of seed plants and spores of seedless plants? | [
"chlorophyll",
"cystosol",
"sporopollenin",
"cocklebur"
] | C |
428 | Cells that have a nucleus and other organelles which are membrane-bound are generally called what kinds of cells? | [
"Megakaryocyte",
"Monocyte",
"Erythrocyte",
"eukaryotic"
] | D |
429 | What is first stage of cellular respiration? | [
"hydrolisis",
"glycolsis",
"electrolysis",
"metabolism"
] | B |
430 | What are groups of stars called that are smaller than a galaxy? | [
"star clusters",
"constellations",
"Milky Way",
"nebuli"
] | A |
431 | Expansion of a gas into a vacuum is irreversible because the external pressure is measurably less than the internal pressure of the gas, and no states of what exist? | [
"liquid",
"balance",
"composition",
"equilibrium"
] | D |
432 | One important phenomenon related to the relative strength of cohesive and adhesive forces is capillary action—the tendency of a fluid to be raised or suppressed in a narrow tube, or called this? | [
"pressure tube",
"capillary tube",
"melting tube",
"cohesive tube"
] | B |
433 | What happens to air density and pressure when gas molecules are warm? | [
"they are unchanged",
"they are equal",
"they are greater",
"they are lower"
] | D |
434 | What kind of reproduction generates most of the genetic variation that makes evolutionary adaptation possible? | [
"asexual reproduction",
"synthetic reproduction",
"cloning",
"sexual reproduction"
] | D |
435 | Can nematodes be a parasite of plants, animals, or both? | [
"animals",
"plants",
"both",
"neither"
] | C |
436 | What kind of weather can you expect if a center of low pressure is moving your way? | [
"sunny",
"rain",
"stormy",
"rough"
] | C |
437 | What is a thin membrane stretched tight across the end of the ear canal that vibrates when sound waves strike it? | [
"cerebrum",
"auricle",
"earlobe",
"eardrum"
] | D |
438 | Icy objects that have very elliptical orbits around the sun are called? | [
"meteors",
"comets",
"asteroids",
"craters"
] | B |
439 | What geologic era is also known as the age of mammals? | [
"cretaceous period",
"paleozoic era",
"cenozoic era",
"mesozoic era"
] | C |
440 | Radioactive atoms, nuclear explosions, and stars produce what types of rays. | [
"beta",
"gamma",
"neutron",
"plasma"
] | B |
441 | The similarities and differences between the genomes confirm patterns of what? | [
"phylum",
"fossils",
"variation",
"evolution"
] | D |
442 | What are the two components of all solutions? | [
"concentration and solvent",
"solute and solvent",
"solute and cytosol",
"sodium and solvent"
] | B |
443 | On how many of the continents do birds live and breed? | [
"three",
"four",
"eight",
"seven"
] | D |
444 | The hydrogen is oxidized because it undergoes a partial loss of what? | [
"density",
"electrons",
"protons",
"ions"
] | B |
445 | What is land with permafrost, no trees, and small hardy plants? | [
"desert",
"taiga",
"tundra",
"subtropics"
] | C |
446 | Viruses replicate only in where? | [
"host cells",
"compromised cells",
"traitor cells",
"weak cells"
] | A |
447 | Matter undergoing chemical reactions and physical changes can release or absorb heat. a change that releases heat is called what? | [
"oxidized process",
"magnetic process",
"biochemical process",
"exothermic process"
] | D |
448 | What hormone secreted by the pineal gland controls sleep-wake cycles and several other processes? | [
"estrogen",
"testosterone",
"melatonin",
"t3"
] | C |
449 | What is defined as the ability to do work? | [
"energy",
"fuel",
"momentum",
"heating"
] | A |
450 | What two types of tissue compose most of the non-pregnant and non-lactating female breast? | [
"intestine and collagenous",
"silicone and collagenous",
"scar and collagenous",
"adipose and collagenous"
] | D |
451 | Control of the body can be somatic or autonomic, offering one way to divide what organ system by function? | [
"nervous system",
"circulatory system",
"central system",
"cardiovascular system"
] | A |
452 | What is the female reproductive structure of a flower? | [
"the stamen",
"the seed",
"the flower",
"the pistil"
] | D |
453 | Cysteine is a type of what fundamental building block of protein? | [
"salts acid",
"amino acid",
"atoms acid",
"proteins acid"
] | B |
454 | The leaves of what plant genus are the source of the compound ephedrine, which is used in medicine as a potent decongestant and is similar to amphetamines? | [
"additive",
"dietary",
"Stimulant",
"ephedra"
] | D |
455 | The simplest organic compounds are known as what? | [
"hydrocarbons",
"amino acids",
"nucleotides",
"carbohydrates"
] | A |
456 | Who developed a classification system that divided living things into several groups that we still use today, including mammals, insects, and reptiles? | [
"jung",
"aristotle",
"harrold",
"darwin"
] | B |
457 | All biochemical molecules have oxygen, carbon, and what other element? | [
"calcium",
"nitrogen",
"helium",
"hydrogen"
] | D |
458 | What is a structure that is composed of one or more types of tissues? | [
"muscle",
"organ",
"node",
"system"
] | B |
459 | If the buoyant force is greater than the force of gravity acting on a ship, what will happen to the ship? | [
"it will explode",
"it will float",
"it will bobble",
"it will sink"
] | B |
460 | What are different types of tissues organized into functional units called? | [
"organs",
"veins",
"tendons",
"arteries"
] | A |
461 | Practitioners of what thought all matter was composed of different proportions of four basic elements, and that if you changed the proportions of these elements, you could change the substance itself? | [
"chemistry",
"biology",
"phrenology",
"alchemy"
] | D |
462 | What are atoms of the same element that differ in their numbers of neutrons called? | [
"opposites",
"organisms",
"reactions",
"isotopes"
] | D |
463 | What is added to a measured portion of a more concentrated stock solution to achieve a particular concentration? | [
"solvent",
"pigment",
"water",
"yeast"
] | A |
464 | What do humans and bats have physically in common? | [
"body hair",
"gland hair",
"wing size",
"body oder"
] | A |
465 | Because optics fibers are thin, entering light may strike the inside surface at greater than the critical angle, requiring attention to what? | [
"reflective point",
"wavelength",
"electromagnetic index",
"refractive index"
] | D |
466 | What is a vector quantity with the same direction as the force called? | [
"impulse",
"accelerated",
"simple",
"inverted"
] | A |
467 | Club mosses, horsetails, ferns, and whisk ferns are examples of what type of plants? | [
"gymnosperms",
"angiosperms",
"seedless vascular plants",
"cycads"
] | C |
468 | What do seeds have that spores do not? | [
"pollenators",
"DNA",
"a supply of stored food",
"chlorophyll"
] | C |
469 | A vector is an organism that carries what disease-causing microorganisms from one person or animal to another? | [
"microbe",
"microbe",
"pathogen",
"genome"
] | C |
470 | When explosion of gases creates pressure resulting in motion of a rocket, the force pushing the rocket is called what? | [
"temperature",
"stasis",
"friction",
"thrust"
] | D |
471 | What once most common bird in north america became extinct in the 1800s? | [
"the passenger piegon",
"the homing piegon",
"the rock penguin",
"the dodo"
] | A |
472 | What is the process called where nitrogen is repeatedly recycled through the biosphere? | [
"nitrogen cycle",
"nitrogen path",
"ammonia cycle",
"water cycle"
] | A |
473 | What does pepsin help break down into amino acids? | [
"carbohydrates",
"glucose",
"fats",
"proteins"
] | D |
474 | What are the most successful phylum of plants? | [
"gymnosperms",
"angiosperms",
"spores",
"ferns"
] | B |
475 | The muscular layer is much thicker in which ventricle of the heart? | [
"upper",
"middle",
"left",
"right"
] | C |
476 | In many places, small hills rise above the ocean floor. these hills are undersea volcanoes, called what? | [
"reefs",
"seamounts",
"ridges",
"corals"
] | B |
477 | Ants, termites, bees, and wasps live in what type of social structure that may include millions of individual insects? | [
"colony",
"family",
"habitat",
"community"
] | A |
478 | Schrödinger’s approach uses three quantum numbers (n, l, and ml) to specify any of what type of function, associated with a particular energy? | [
"wave function",
"shift function",
"rush function",
"green function"
] | A |
479 | What is the term for the ability of an atom to emit, or give off, charged particles and energy from its nucleus? | [
"magnetism",
"radioactivity",
"conductivity",
"electrical attraction"
] | B |
480 | What type of fluid cushions the fetus and helps protect it from injury? | [
"aqueous",
"epithelial",
"plasmid",
"amniotic"
] | D |
481 | How can you prevent diseases such as whooping cough and flu? | [
"nutrition",
"vacuuming",
"preventive vaccinations",
"exercise"
] | C |
482 | Why do snakes have venomous bites? | [
"to kill prey",
"to kill rival snakes",
"to clean themselves",
"to scare humans"
] | A |
483 | Chelicerae in spiders are often modified into fangs that perform what function? | [
"chewing",
"courtship display",
"tearing flesh",
"inject venom"
] | D |
484 | What results from uncontrolled cell division? | [
"high blood pressure",
"cancers",
"diabetes",
"obesity"
] | B |
485 | Where do angiosperms form seeds? | [
"cones",
"testes",
"stamen",
"ovaries"
] | D |
486 | What term is used to describe the development of new technology? | [
"technological design",
"mechanical engineering",
"industrial design",
"technological expansion"
] | A |
487 | All of the populations that live in the same area make up what type of group, which includes populations of different organisms? | [
"colony",
"community",
"hive",
"environment"
] | B |
488 | What model describing atomic structure is often referred to as a planetary model? | [
"Newton's model",
"bohr model",
"Pascal model",
"kinetic model"
] | B |
489 | The medium moves back and forth in the same direction as the wave in what type of wave? | [
"variable wave",
"kinetic wave",
"latitudinal wave",
"longitudinal wave"
] | D |
490 | A ramp is a type of simple machine called what? | [
"allow plane",
"inclined plane",
"rough plane",
"extension plane"
] | B |
491 | Where do plants take in air? | [
"their flowers",
"their stems",
"their leaves",
"their roots"
] | C |
492 | Under the right conditions, what energy source can be used to eject electrons from a solid material? | [
"force",
"weight",
"light",
"gravity"
] | C |
493 | The type of bond that forms between molecules is called what? | [
"covalent bond",
"hydrogen bond",
"fission bond",
"helium bond"
] | B |
494 | Radiation, chemicals, and infectious agents are examples of what? | [
"inhibitors",
"mutagens",
"catalysts",
"pathogens"
] | B |
495 | What is the name for a tool commonly used by molecular biologists to place genetic material into cells? | [
"a viral vector",
"an rna vector",
"a embryonic vector",
"a dna vector"
] | A |
496 | What is the study of how forces affect the motion of objects? | [
"acceleration",
"behaviors",
"kinematics",
"dynamics"
] | D |
497 | Compounds containing which element are the basis of all known life? | [
"oxygen",
"carbon",
"helium",
"hydrogen"
] | B |
498 | What type of rocks form when an existing rock is changed by heat or pressure? | [
"metamorphic",
"Molten",
"sediments",
"igneous"
] | A |
499 | What does jupiter reflect a lot of due to its size? | [
"sunlight",
"carbon",
"moisture",
"molecules"
] | A |
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