Biologists Think There Are Four Major Reasons Why We Should

question 53

Multiple Choice

Biologists think there are four major reasons why we should work to prevent human activities from causing the extinction of other species.Which of the following is not one of these reasons?

• A) Species are part of the earth's life support system.
• B) Most species contribute to services that support our economies.
• C) It will take from 5 million to 10 million years to rebuild the biodiversity.
• D) We need animals,especially rare animals,for zoos.
• E) Each species has a right to exist even if it isn't useful to us.

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Definitions:

Adduction

The movement of a body part toward the body's midline.

Rotation

Movement of a structure about its axis.

Linea Alba

A fibrous structure that runs down the midline of the abdomen, providing muscle attachment.

Serratus Anterior

A muscle of the chest that assists in the upward movement of the arm and in the breathing process.