Which Description Best Fits That of an Open Circulatory System

question 27

Multiple Choice

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.

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