If a migratory bird is kept in a laboratory without any cues to the season, it will become:
A) more active in the spring.
B) less active in the spring.
C) more active in the summer.
D) more active in the winter.

Question

Quizplus · Accepted Answer

Migratory birds have an internal biological clock that triggers increased activity in the spring, preparing them for migration, even without external seasonal cues.

If a Migratory Bird Is Kept in a Laboratory Without