Use the Following Information to Answer the Question

question 57

Multiple Choice

Use the following information to answer the question.
Two populations of birds with somewhat different coloration live on opposite sides of a peninsula. The habitat between the populations is not suitable for these birds. When birds from the two populations are brought together, they produce young whose appearance is intermediate between the two parents. These offspring will breed with each other or with birds from either parent population, and all offspring of these pairings appear intermediate to various degrees.
What keeps the two populations separate?

• A) temporal reproductive isolation
• B) lack of hybrid viability
• C) behavior isolates reproductive activities
• D) habitat isolation

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Definitions:

Cues

Signals or stimuli that cause a response or direct attention, used in various contexts including psychology, communication, and behavior analysis.

ESP

Extrasensory perception, a claimed ability to gain information through means other than the known human senses.

Operational Definition

A statement of the procedures and ways in which a research variable is measured and defined.

Muscle Tension

The condition in which muscles of the body remain semi-contracted for an extended period, which may be a response to stress or physical exertion.