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.
A) a mollusc
B) an annelid
C) an arthropod
D) a platyhelminth

Question

Quizplus · Accepted Answer

Platyhelminths, or flatworms, have a flattened shape that gives them a very high surface-area-to-volume ratio compared to the other organisms listed. This is because their flat shape maximizes the amount of surface area exposed relative to their total volume.

Which of the Following Organisms Would You Expect to Have