Question
A lab observation notes that in most molluscs, blood leaves vessels and bathes organs directly in body spaces. The observation points to:
Correct Answer: D
hemocoel in most classes
Most molluscs have an open circulatory system in which hemolymph moves through a hemocoel. Cephalopods are the major exception with a closed circulatory system. This MCQ belongs to the Mollusca topic in Animal Diversity-I and is written to test concept understanding rather than memorized wording.
Most molluscs have an open circulatory system in which hemolymph moves through a hemocoel. Cephalopods are the major exception with a closed circulatory system. This MCQ belongs to the Mollusca topic in Animal Diversity-I and is written to test concept understanding rather than memorized wording.
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