[OLD] Populations - Ecosystems: Key Terms Flashcards

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1
Q

Abiotic

A

Ecological factor making up part of the non-biological environment of an organism e.g temperature, pH

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2
Q

Adaptation

A

Alterations in pattern or structure resulting from natural selection that allow the organism to be fitter

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3
Q

Biotic

A

Ecological factor making up part of the biological environment of an organism e.g food availability

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4
Q

Community

A

All the living organisms in an ecosystem at a given time

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5
Q

Ecosystem

A

All the living and non-living components of a particular area

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6
Q

Environment

A

Natural biological factors that affect life in a particular place and time

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7
Q

Habitat

A

Where an organism normally lives, characterised by the physical conditions (abiotic factors) and other organisms present

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8
Q

Interspecific competition

A

Competition between organisms of different species

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9
Q

Intraspecific competition

A

Competition between organisms of the same species

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10
Q

Niche

A

How an organism fits into its environment. What a species is like, where it occurs, what it eats and its interactions with other species. Only one species can occupy a given niche at a particular time.

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11
Q

Population

A

Group of individuals of the same species that occupy the same habitat at the same time

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12
Q

Ecology

A

The study of organisms and their interaction with the environment

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13
Q

Carrying capacity

A

The maximum stable population size of a species that an ecosystem can support

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14
Q

Predation

A

Where an organism kills and eats another organism

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