Multiple Choice
Why is an open circulatory system less efficient than a closed circulatory system?
A) It is more difficult to deliver O2 to specific tissues when needed.
B) There is no heart to pump the blood.
C) Open circulatory systems lack hemoglobin.
D) Nutrients cannot be delivered to tissues in an open circulatory system.
E) All of the above
Correct Answer:
Verified
Correct Answer:
Verified
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