The Starfish Pisaster

question 1

Multiple Choice

The starfish Pisaster

• A) consumes barnacles, decreasing competition.
• B) competitively excludes mussels.
• C) suppresses algal growth.
• D) benefits from the shade of kelp.
• E) none of the above

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Definitions:

External Locus Of Control

The belief that one's life events are largely determined by forces outside one's control.

Conscientiousness

A personality trait characterized by organization, dependability, and a strong sense of duty.

General Adaptation Syndrome

A theoretical model describing the body's short-term and long-term reactions to stress, developed by Hans Selye.

Hypothalamus

A region of the brain below the thalamus that coordinates both the autonomic nervous system and the activity of the pituitary, controlling body temperature, thirst, hunger, and other homeostatic systems.