Which description best fits that of an open circulatory system?
A)The heart pumps hemolymph into tissue spaces that are enlarged into saclike sinuses.
B)The heart pumps blood across gills and then into tissue spaces that are enlarged into saclike sinuses.
C)Gases diffuse across a cutaneous membrane and then move into tissue spaces that are enlarged into saclike sinuses.
D)The heart pumps hemolymph into tissue spaces that route the fluid across the gills for gas exchange.

Question

Quizplus · Accepted Answer

In an open circulatory system, the heart pumps hemolymph into open spaces or sinuses where it directly bathes the organs, rather than being confined to blood vessels.

Which Description Best Fits That of an Open Circulatory System