CH. 4 key terms Flashcards

1
Q

ecosystem

A

biological community of interacting organisms and their physical environment.

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2
Q

biotic factor

A

a living thing that affects other things

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3
Q

abiotic factor

A

a non-living part of an ecosystem that shapes its environment

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4
Q

organism

A

an individual animal, plant, or single-celled life form

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5
Q

species

A

group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.

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6
Q

population

A

all the inhabitants of a particular town, area, or country

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7
Q

community

A

a group of people living in the same place or having a particular characteristic in common

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8
Q

habitat

A

the natural home or environment of an animal, plant, or other organism

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9
Q

natural selection

A

he process whereby organisms better adapted to their environment tend to survive and produce more offspring.

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10
Q

evolution

A

he process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.

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11
Q

adaptation

A

the action or process of adapting or being adapted.

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12
Q

artificial selection

A

the identification by humans of desirable traits in plants and animals,

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13
Q

resistence

A

the refusal to accept or comply with something; the attempt to prevent something by action or argument.

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14
Q

archaea

A

any of a group of single-celled prokaryotic organisms

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15
Q

bacteria

A

a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some that can cause disease.

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16
Q

fungus

A

any of a group of spore-producing organisms feeding on organic matter, including molds, yeast, mushrooms, and toadstools

17
Q

protist

A

a single-celled organism of the kingdom Protista, such as a protozoan or simple alga.

18
Q

gymnosperm

A

a plant that has seeds unprotected by an ovary or fruit. Gymnosperms include the conifers, cycads, and ginkgo.

19
Q

angiosperm

A

a plant that has flowers and produces seeds enclosed within a carpel.

20
Q

invertabrate

A

an animal lacking a backbone, such as an arthropod, mollusk, annelid, coelenterate.

21
Q

vertabrate

A

an animal of a large group distinguished by the possession of a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fishes.