The primary circulatory medium in echinoids is
A)blood.
B)hemal fluid.
C)plasma.
D)coelomic fluid.
E)pyloric cecae.

Name: The primary circulatory medium in echinoids is A)blood. B)hemal fluid. C)plasma. D)coelomic fluid. E)pyloric cecae.
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Question

Quizplus · Accepted Answer

Echinoids have a water vascular system, which functions in respiration, feeding, and movement. This system is filled with coelomic fluid, which is the primary circulatory medium for echinoids. It is not blood, hemal fluid, plasma, or pyloric cecae.

The Primary Circulatory Medium in Echinoids Is