Vocabulary Flashcards

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1
Q

part of the arthropod’s body that is behind the thorax.

A

abdomen

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2
Q

nonliving factor in an ecosystem, such as moisture, temperature, wind, sunlight, soil, and minerals.

A

abiotic

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3
Q

four common blood types (A, B, AB, O) and the protein markers that distinguish them.

A

ABO blood group

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4
Q

process by which nutrients move out of one system and into another.

A

absorption

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5
Q

depth of the ocean that lies below 2000 meters and is in complete darkness.

A

abyssal zone

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6
Q

compound that donates a proton (H+) when dissolved in a solution.

A

acid

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7
Q

precipitation produced when pollutants in the atmosphere cause the pH of rain the decrease.

A

acid rain

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8
Q

condition characterized by having several infections and very few T cells.

A

Acquired Immune Deficiency Syndromes (AIDS)

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9
Q

filament that is pulled by myosin filaments to cause muscle contractions.

A

actin

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10
Q

fast, moving change in electrical charge across a neuron’s membrane; also called an impulse.

A

action potential

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11
Q

energy input necessary to initiate a chemical reaction.

A

activation energy

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12
Q

immunity that occurs after the body responds to an antigen.

A

active immunity

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13
Q

energy-requiring movement of molecules across a region of a lower concentration to a region of higher concentration.

A

active transport

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14
Q

inherited trait that is selected for over time because it allows organisms to better survive in their environment.

A

adaption

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15
Q

process by which one species evolves and gives rise to many descendant species that occupy different ecological niches.

A

adaptive radiation

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16
Q

uncontrollable physical and mental need for something.

A

addiction

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17
Q

low-energy molecule that can be converted to ATP.

A

Adenosine Diphosphate (ADP)

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18
Q

high-energy molecule that contains, within its bonds, energy that cells can use.

A

Adenosine Triphosphate (ATP)

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19
Q

attraction between molecules of different substances.

A

adhesion

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20
Q

period of life beginning at puberty and ending at adulthood.

A

adolescence

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21
Q

period of life when a person is fully developed and physical growth stops.

A

adulthood

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22
Q

process that required oxygen to occur.

A

aerobic

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23
Q

surface, such as a bird’s wing, whose shape moves air faster over the top than underneath it, allowing for flight.

A

airfoil

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24
Q

air-filled space that connects a bird’s lung, aiding in breathing.

A

air sac

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25
Q

photosynthetic plantlike protists.

A

algae

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26
Q

chemical produced by plants that contains nitrogen, many of which are used in medicines.

A

alkaloid

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27
Q

any of the alternative forms of a gene that occurs at a specific place on a chromosome.

A

allele

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28
Q

proportion of one allele, compared with all the alleles for that trait, in the gene pool.

A

allele frequency

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29
Q

antigen that does not cause disease but still produces an immune response.

A

allergen

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30
Q

immune response that occurs when the body responds to a nondisease-causing antigen, such as pollen or animal dander.

A

allergy

31
Q

plant life cycle in which the plant alternates between haploid and diploid phases.

A

alternation of generations

32
Q

behavior in which an animal reduces its own fitness to help the other members of its social group.

A

altruism

33
Q

tiny, thin-walled structure across which oxygen gas is absorbed and carbon dioxide is released in the lungs.

A

alveolus

34
Q

molecule that makes up proteins; composed of carbon, hydrogen, oxygen, nitrogen, and sometimes argon.

A

amino acid

35
Q

vertebrate whose embryo or fetus is enclosed by a thin, tough, membranous sac.

A

amniote

36
Q

waterproof container that allows an embryo to develop out of water and externally from the mother without drying out.

A

amniotic egg

37
Q

fluid-filled organ that cushions and protects the developing embryo of some vertebrates.

A

amniotic sac

38
Q

vertebrate that can live on land and in water.

A

amphibian

39
Q

process that does not require oxygen to occur.

A

anaerobic

40
Q

body part that is similar in function as a body part of another organism but is structurally different.

A

analogous structure

41
Q

third phase of mitosis during which chromatids separate and are pulled to opposite sides of the cell.

A

anaphase

42
Q

severe allergic reaction that causes airways to tighten and blood vessels to leak.

A

anaphylaxis

43
Q

seed plant whose embryos are enclose by fruit.

A

angiosperm

44
Q

humanlike primate

A

anthropoid

45
Q

chemical that kills or slows the growth of bacteria.

A

antibiotic

46
Q

process by which bacteria mutate so they are no longer affected by an antibiotic.

A

antibiotic resistance

47
Q

protein produced by B cells that aid in the destruction of pathogens.

A

antibody

48
Q

set of three nucleotides in a tRNA molecule that binds to a complementary mRNA codon during translation.

A

anticodon

49
Q

protein marker that helps the immune system identify foreign particles.

A

antigen

50
Q

chemical, such as soap, vinegar, or rubbing alcohol, that destroys pathogens outside of the body.

A

antiseptic

51
Q

programmed cell death

A

apoptosis

52
Q

extension, such as antenna or arm, that is attached to the body.

A

appendicular skeleton

53
Q

terrestrial chelicerate, such as a spider

A

arachnid

54
Q

one of the three domains of life, containing single-celled prokaryote in the kingdom Archaea.

A

Archaea

55
Q

large blood vessel that carries blood away from the heart.

A

artery

56
Q

invertebrate with an exoskeleton, jointed appendages, and a segmented body.

A

arthropod

57
Q

process by which humans modify a species by breeding it for certain traits.

A

artificial selection

58
Q

process by which offspring are produced from a single parent; does not involve the joining of gametes.

A

asexual reproduction

59
Q

condition in which air pathways in the lungs constrict, making breathing difficult.

A

asthma

60
Q

air blanketing Earth’s solid surface.

A

atmosphere

61
Q

smallest basic unit of matter

A

atom

62
Q

enzyme that catalyzes the reaction that adds a high-energy phosphate group to ADP to form ATP.

A

ATP synthase

63
Q

small chamber in the human heart that receives blood from the veins.

A

atrium

64
Q

division of the peripheral nervous system that controls involuntary functions.

A

autonomic nervous system

65
Q

chromosome that contains genes for characteristics not directly related to the sex of the organism.

A

autosome

66
Q

organisms that obtains energy through abiotic sources, such as sunlight or inorganic chemicals.

A

autotroph

67
Q

plant hormone that stimulates the lengthening of cells in the growing tip.

A

auxin

68
Q

part of the skeletal system that supports that body’s weight and protects the body’s internal tissues; includes the bones of the skull, spinal column, and rib cage.

A

axial skeleton

69
Q

long extension of the neuron membrane that carries impulses from one neuron to another.

A

axon

70
Q

one of the three domains of life, containing single-celled prokaryotes in the kingdom of Bacteria.

A

Bacteria

71
Q

virus that infects bacteria.

A

bacteriophage

72
Q

organism that is within the kingdom Bacteria

A

bacterium

73
Q

compound that accepts a proton (H+) when dissolved in solution.

A

base

74
Q

rules that describes how nucleotides form bonds in DNA (A to T and C to G)

A

base pairing rules