environmental Science CH. 4 Flashcards

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1
Q

ecosystem

A

all of the organisms living in an area together with their physical environment

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2
Q

biotic factors

A

the living and once-living parts of an ecosystem, including all of the plants and animals

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3
Q

abiotic factors

A

the nonliving parts of the ecosystem; includes air, water, rocks, sand, light, and temperature

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4
Q

organism

A

an individual living thing

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5
Q

species

A

a group of organisms that can mate to produce fertile offspring

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6
Q

population

A

all the members of the same species that live in the same place at the same time

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7
Q

community

A

a group of various species that live in the same place and interact with each other

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8
Q

habitat

A

a place an organism lives in

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9
Q

natural selection

A

the survival and reproduction of organisms with particular traits

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10
Q

adaptaion

A

an inherited trait that increases an organism’s chance of survival and reproduction in a certain environment

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11
Q

artificial selection

A

the selective breeding of organisms by humans for specific characteristics

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12
Q

resistance

A

the ability of one or more organisms to tolerate a particular chemical designed to kill it

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13
Q

archaeabacteria

A

often found in extreme places

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14
Q

Eubacteria

A

very common and can be found in soil and animal bodies

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15
Q

fungus

A

an organism whose cells have nuclei and cell walls

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16
Q

protists

A

a diverse group of one-celled organisms and their many-celled relatives

17
Q

gymnosperms

A

woody plants that produce seeds, but their seeds are not enclosed in fruits

18
Q

angiosperm

A

flowering plants that produce seeds in fruit

19
Q

invertebrates

A

animals that lack backbones

20
Q

vertebrates

A

animals that have backbones