Question

Why caterpillers need to shed their skin when theay grow bigger

Answer 1

Answer:

A caterpillar’s ‘skin’ is actually its exoskeleton, made of a hard material called chitin. As the caterpillar grows, it’s exoskeleton does not grow with it. Instead it develops a new exoskeleton underneath, which is softer. A time comes when the old exoskeleton can no longer stretch to accommodate the caterpillar’s growth - this is when it sloughs off the old ‘skin’.