What restricts the growth of a newly emerged insect that feeds ravenously?

The restriction on the growth of a newly emerged insect that feeds ravenously is primarily due to the rigid exoskeleton. Insects possess a hard outer covering known as an exoskeleton, which provides structural support and protection. While this rigidity is beneficial in many ways, it also serves as a limiting factor for growth.

When an insect emerges, it often goes through a process known as molting, where it sheds its exoskeleton to allow for growth. However, the existing exoskeleton does not expand; thus, the insect must periodically molt to accommodate its increase in size. After molting, the new exoskeleton is initially soft, allowing the insect to grow for a short period until the new exoskeleton hardens. During this period, growth is expedited, but without the ability to molt regularly, the insect’s growth will become restricted by the rigidity of the exoskeleton.

The other options, like soft skin or a flexible abdomen, do not accurately describe the typical anatomical features of insects that would affect their growth in this context. The term "soft exoskeleton" may suggest a temporary state immediately after molting when growth can occur, but ultimately, it is the transition back to a rigid state that limits overall growth