Multiple Choice
The circulatory system of an earthworm circulates blood
A) by the pumping action of multiple four-chambered hearts.
B) by peristaltic waves generated by contraction of muscular blood vessels.
C) using an open circulatory system.
D) using one centrally located heart.
E) through the heart,to the lungs,back to the heart,and out to the systemic tissues.
Correct Answer:
Verified
Correct Answer:
Verified
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