Many Crustaceans (For Example, Lobsters, Shrimp, and Crayfish) Use Their

question 3

Multiple Choice

Many crustaceans (for example, lobsters, shrimp, and crayfish) use their tails to swim, but crabs have reduced tails that curl under their shells and are not used in swimming. This is an example of ________.

• A) convergent evolution
• B) a homologous structure
• C) natural selection
• D) a vestigial trait

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Definitions:

Free Associations

A psychoanalytic technique where patients express their thoughts freely, allowing therapists to uncover unconscious desires or feelings.

Projections

The action of predicting or estimating something based on current trends or data.

Social Anxiety Disorder

A mental health condition characterized by intense fear and avoidance of social situations due to feelings of embarrassment, self-consciousness, and concern about being judged by others.

Agoraphobia

An anxiety disorder characterized by an intense fear of places or situations where escape might be difficult.