Question

Insects generally form a new, soft exoskeleton under the old one, then shed or _______ the old one.

A) Molt.
B) Ecdysis.
C) Harden.
D) Slough.

Answer 1

Insects go through a process called molting, or ecdysis, where they shed their old exoskeleton to grow. The new exoskeleton underneath hardens and provides protection. This process allows insects to diversify in size and shape throughout their lives.

Step-by-step explanation:

Insects shed their old exoskeleton in a process known as molting, or scientifically referred to as ecdysis. This is necessary because the exoskeleton, made predominantly of chitin, does not grow with the insect. During molting, they form a new, soft exoskeleton underneath the old one. Once ready, the insect sheds the old exoskeleton, this phase is known as ecdysis. After shedding, the new exoskeleton hardens and provides protection. This process is crucial for growth and morphological changes that occur within the insect's lifecycle. Although the insect is vulnerable during this time, molting allows for diversification in size and form, simply because the numbers of molts can be modified through evolution.