Question
For semester exam preparation, consider this situation: an earthworm transports blood through dorsal and ventral vessels rather than open sinuses. The correct conclusion is:
Correct Answer: B
closed circulatory system
Annelids generally have a closed circulatory system, where blood remains within vessels. This is more efficient than relying only on diffusion in larger active worms. This MCQ belongs to the Annelida topic in Animal Diversity-I and is written to test concept understanding rather than memorized wording.
Annelids generally have a closed circulatory system, where blood remains within vessels. This is more efficient than relying only on diffusion in larger active worms. This MCQ belongs to the Annelida topic in Animal Diversity-I and is written to test concept understanding rather than memorized wording.
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