Crossbill birds have a beak that is designed to eat pine cones.If we trim the beak,the behavior disappears.This example illustrates:
A) fixed behavior.
B) flexible behavior.
C) learned behavior.
D) adaptive behavior.

Question

Quizplus · Accepted Answer

Fixed behavior is a behavior that is not modified by experience. In this case, the crossbill bird's beak is designed to eat pine cones, and if the beak is trimmed, the bird can no longer eat pine cones. This shows that the bird's behavior is fixed, and not learned or flexible.

Crossbill Birds Have a Beak That Is Designed to Eat