Two Species of Tree Frogs That Live Sympatrically in the Eastern

question 45

Multiple Choice

Two species of tree frogs that live sympatrically in the eastern United States differ in ploidy: Hyla chrysoscelis is diploid, and Hyla versicolor is tetraploid. The frogs are identical in appearance, but their mating calls, which females use to find mates, differ. Which difference most likely evolved first?

• A) polyploidy
• B) difference in breeding seasons
• C) habitat differentiation
• D) female preference for male mating calls

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Definitions:

Social Learning

The process of acquiring behaviors, attitudes, and skills through observing and imitating others within a social context.

Operant Model

A theory of learning that emphasizes the role of rewards and punishments in shaping behavior.

Latency Stage

A phase in Freudian psychosexual development occurring between ages 6 and puberty, characterized by a decrease in sexual urges and interests.

Psychosexual Stage

In psychoanalytic theory, one of the developmental phases during which the pleasure-seeking energies of the id focus on distinct erogenous zones.