In Asteroidea the ________ system consists of strands of tissue that encircle the mouth near the ring canal and run into each arm near the radial canals.As in other echinoderms,this system probably transports digestive products,hormones,and other substances.
A)hemal
B)secretory
C)skeletal
D)muscular
E)excretory

Question

Quizplus · Accepted Answer

The hemal system in Asteroidea consists of strands of tissue that encircle the mouth near the ring canal and run into each arm near the radial canals. This system is responsible for transportation of substances such as digestive products, hormones, and other substances, which is similar to the function of the hemal system in other echinoderms. Therefore, choice A is the best option for this question.

In Asteroidea the ________ System Consists of Strands of Tissue