The IUCN Has Defined Categories to Be Applied to Species

question 67

Multiple Choice

The IUCN has defined categories to be applied to species based on their conservation status. The category "extinct in the wild" refers to a species that

• A) was known to exist in the year 1500 but no individuals remain alive today.
• B) was known to exist in the year 1900 but no individuals remain alive today.
• C) can be found only in zoos or facilities that might be conducting captive breeding.
• D) are found only in less than 1 percent of their original documented native habitat

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Definitions:

Energy Expenditure

The total amount of energy used by an organism for basic bodily functions and physical activity.

Metabolic Processes

The chemical reactions that occur within a living organism to maintain life.

Torpor

A state of decreased physiological activity in an animal, usually by a reduced body temperature and metabolic rate.

Hibernation

A state of minimal activity and metabolic depression entered by animals to survive winter or other adverse conditions.