In His Studies of Ecosystems in the Rocky Intertidal Zone

question 12

Multiple Choice

In his studies of ecosystems in the rocky intertidal zone, Paine emphasized that

• A) interaction strengths may vary among different pairs of species.
• B) pollination mutualisms should not be neglected in food web studies.
• C) some organisms may change their feeding patterns as they mature.
• D) keystone species exercise minimal influence on marine ecosystems.

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Definitions:

Boiling

The rapid vaporization of a liquid when it is heated to its boiling point, the temperature at which it changes phase from liquid to gas.

Fahrenheit

A scale for measuring temperature where 32°F is the point at which water freezes and 212°F is the point at which it boils under normal atmospheric pressure.

Hypothalamus

A region of the brain that controls an enormous number of bodily functions including emotions, the autonomic nervous system, and the endocrine system.

Autonomic Nervous System

The part of the nervous system responsible for control of the bodily functions not consciously directed, such as breathing, the heartbeat, and digestive processes.