In an open circulatory system,
A) there is no heart.
B) there is a gastrovascular cavity.
C) there are no blood vessels.
D) hemolymph flows out of the body.
E) there is no distinction between hemolymph and extracellular fluid.

Question

Quizplus · Accepted Answer

In an open circulatory system, the fluid (hemolymph) that serves as blood and interstitial fluid is not confined to blood vessels but is instead allowed to flow freely within body cavities, where it comes into direct contact with the tissues. This means there is no distinction between hemolymph and extracellular fluid, as they are essentially the same in this type of circulatory system.

In an Open Circulatory System