Question

1. which of the following is an example of diapause?

a. a ground squirrel hibernating during the winter.

b. a monarch butterfly migrating south for the winter.

c. a bird making its nest high in the trees to escape predators.

d. an insect slowing down all its body activities during the winter.

a

b

c

d

Explanation:

Diapause is a physiological state of dormancy in insects (and some other organisms) with reduced metabolic activity, often in response to environmental stress like winter.

• Option A: Ground squirrels hibernate, but hibernation in mammals is different from insect diapause.
• Option B: Monarch migration is movement, not dormancy.
• Option C: Nest - building is a behavioral adaptation for protection, not diapause.
• Option D: An insect slowing body activities in winter fits diapause as it's a dormant state in insects to survive harsh conditions.

Answer:

D. An insect slowing down all its body activities during the winter.