Which of the following organisms would you expect to have the largest surface-area-to-volume ratio? Assume that all of the following are the same total length.

Question

Quizplus · Accepted Answer

A platyhelminth, also known as a flatworm, has a flattened body shape that leads to a high surface-area-to-volume ratio. This is because their body volume is relatively small compared to their surface area. In contrast, mollusks, annelids, and arthropods have more cylindrical body shapes with a larger volume relative to their surface area.

Which of the Following Organisms Would You Expect to Have