Components Of Biodiversity Flashcards

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1
Q

Biodiversity

A

Feature of an ecosystem based on the richness of its species and their relative abundance.

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2
Q

Degradation

A

Reduction in the quality of a natural ecosystem as a result of human activity.

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3
Q

Dominant

A

Most prevalent species that determines the appearance and composition of the community.

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4
Q

Ecosystem diversity

A

Number of distinct ecosystems present in a defined area.

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5
Q

Extinction

A

Irreversible loss of a species of living things from planet earth.

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6
Q

Extinction rate

A

Measure of the number or percentage of species irreversibly list per unit time.

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7
Q

Genetic diversity

A

State found among the members of a population resulting from the genetic variation present in their DNA.

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8
Q

Habitat destruction

A

Human activity leading to possible extinction of many species.

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9
Q

Habitat island

A

Area surrounded by a dissimilar ecosystem that cannot be colonised by the enclosed area’s species.

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10
Q

Species diversity

A

Feature of an ecosystem based on richness of its species and their relative abundance.

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11
Q

Feature of an ecosystem based on the richness of its species and their relative abundance.

A

Biodiversity

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12
Q

Reduction in the quality of a natural ecosystem as a result of human activity.

A

Degradation

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13
Q

Most prevalent species that determines the appearance and composition of the community.

A

Dominant

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14
Q

Number of distinct ecosystems present in a defined area.

A

Ecosystem diversity

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15
Q

Irreversible loss of a species of living things from planet earth.

A

Extinction

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16
Q

Measure of the number or percentage of species irreversibly list per unit time.

A

Extinction rate

17
Q

State found among the members of a population resulting from the genetic variation present in their DNA.

A

Genetic diversity

18
Q

Human activity leading to possible extinction of many species.

A

Habitat destruction

19
Q

Area surrounded by a dissimilar ecosystem that cannot be colonised by the enclosed area’s species.

A

Habitat island

20
Q

Feature of an ecosystem based on richness of its species and their relative abundance.

A

Species diversity