What Is the Major Reason Scientists Think Declines in Lizard

question 31

Multiple Choice

What is the major reason scientists think declines in lizard populations around the world will lead to losses in community diversity?

• A) Loss of each lizard species will decrease community diversity by one species.
• B) Lizards provide food for many species,which will go extinct as lizards disappear.
• C) Lizards will move out of regions that are too cool,and no species will be able to replace them.
• D) Loss of lizard species will cause a trophic cascade,affecting all species and leading to loss of community function.
• E) Lizards interact with insects;their loss will affect only insect populations,but will have a great effect because there are so many insects.

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Definitions:

Marginal Revenue

The additional income earned from selling one more unit of a product or service.

Marginal Revenue

The additional income gained from selling one more unit of a good or service.

Average Revenue

The total revenue received by a firm from selling its products divided by the total quantity of the product sold, essentially the average price per unit sold.

Indistinguishable

Unable to be identified as different or distinct when compared to another.