Which of the following has not contributed to the evolutionary success of arthropods?
A) jointed appendages
B) water vascular system
C) well-developed sense organs
D) hard exoskeleton
E) compound eyes

Question

Quizplus · Accepted Answer

The water vascular system is a feature unique to echinoderms, such as starfish and sea urchins, and has not been a contributing factor to the evolutionary success of arthropods. Instead, jointed appendages, well-developed sense organs, hard exoskeleton, and compound eyes have all played important roles in the adaptive radiation and success of arthropods.

Which of the Following Has Not Contributed to the Evolutionary