unit 7 Flashcards

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1
Q

Abiotic

A

physical rather than biological; not derived from living organisms.

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2
Q

Biotic

A

relating to or resulting from living things, especially in their ecological relations.

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3
Q

Biodiversity

A

a variety of organisms in an ecosystem or biome

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4
Q

Climax community

A

a dominant community of plants and animals that come to live in an area.

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5
Q

Ecological succession

A

the changing sequence of communities that live in an ecosystem during a given time period.

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6
Q

Limiting factor

A

a condition or resource that keeps a population at a certain size.

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7
Q

Microhabitat

A

a small or specialized habitat within a larger habitat.

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8
Q

Pioneer species

A

first organisms to live in an area

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9
Q

Primary succession

A

a process that develops a biotic community in a previously uninhabited and barren habitat with little or no soil.

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10
Q

Secondary succession

A

a process started by an event that reduces an already established ecosystem to a smaller population of species

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11
Q

Sustainability

A

ability to maintain ecological processes over long periods of time; ability of an ecosystem to maintain its structure and function over time.

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12
Q

Biome

A

a large naturally occurring community of flora and fauna occupying a major habitat, e.g. forest or tundra.

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