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Questions  >>  CBSE XII  >>  Biology
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What criteria should one use in categorizing a species as threatened?

What criteria should one use in categorizing a species as threatened?

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A)
Threatened species are those species which are likely to become extinct if they are not provided with proper habitat, food or protection which shall make them realize their full biotic potential. Red List recognizes vulnerable, endangered and critically endangered species as threatened species.

a. Vulnerable species : A species is considered as vulnerable one when it is not critically endangered but is facing a high rate of extinction in the wild in medium term future.

b. Endangered species : A species is endangered when it is not critically endangered but is facing a high risk of extinction in the wild in near future.

c. Critically endangered species : A species is critically endangered when it is facing extremely a high risk of extinction in the near future.
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