SAT Subject Biology Practice Question 429: Answer and Explanation

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Question: 429

19. A group of 10 newly hatched chicks was separated into two smaller groups containing five chicks each. One group (Group A) was left with the mother hen, the other group (Group B) was taken shortly after hatching and kept with a mother goose. The chicks in Group A displayed normal behavior and followed the mother hen around. The chicks in Group B followed the mother goose around and exhibited goose like behavior, such as swimming. After one week, Group B was reunited with the mother hen, but ignored her, and instead continued to follow the mother goose around the barnyard.

The behavior exhibited by the chicks in Group B is

A. imprinting
B. instinct
C. insight
D. habituation
E. conditioning

Correct Answer: A

Explanation:

A Remember that any type of behavior in newborn animals that depends on exposure to an object during a critical time period (such as right after hatching) is called imprinting.

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