A fantasy movie features a caterpillar that never matures into an adult, but simply gets larger and larger with each moult. It might be possible that the caterpillar did not mature into an adult because of
A)a lack of ecdysone.
B)a lack of juvenile hormone.
C)a decreased level of ecdysteroid.
D)an increased level of juvenile hormone.
E)a lack of melatonin.

Question

Quizplus · Accepted Answer

Juvenile hormone is responsible for inhibiting metamorphosis in insects, allowing them to remain in their larval stage and continue to grow larger with each moult. Therefore, an increased level of juvenile hormone could prevent the caterpillar from maturing into an adult.

A Fantasy Movie Features a Caterpillar That Never Matures into an Adult