The Crayfish Has a Cavity or "Statocysts" Lined with Sensory

question 20

Multiple Choice

The crayfish has a cavity or "statocysts" lined with sensory setae or hairs.A grain in the cavity is pulled downward by gravity; the pressure against the bottom hairs of the cavity gives the crayfish a perception of being upright and,when it changes orientation,the grain touches side hairs that make it realize it is not upright.Thus,the crayfish "knows" which way is up in the dark.This sense is most closely related in function to the human sense of

• A)hot and cold.
• B)hearing.
• C)smell.
• D)sight.
• E)balance.

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Definitions:

Align

To adjust or arrange something in a straight line, or to bring into cooperation or agreement with a particular group, standard, or belief.

Foot-in-the-door Technique

A persuasive tactic involving getting a person to agree to a small request as a precursor to making them more likely to agree to a larger request later.

Small Request

A minor or insignificant petition or appeal made to another individual, often as a precursor to asking for a larger favor in compliance theories.

Larger Request

A strategy in persuasion and social influence where a bigger, often less achievable, request is made knowing it could be refused in favor of a smaller one that is the real aim.