Organisms like earthworms which have a coelom,would have which type of circulatory system?
A) A heart that has two chambers
B) A single-loop circulatory pathway
C) A single heart that pump bloods into vessels that allow for gas exchange next to the moist body wall
D) A series of hearts that will pump blood into vessels that allow for gas exchange next to the moist body wall
E) A series of hearts that will pump blood into vessels that allow for gas exchange within capillary beds
Correct Answer:
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A)Heart tissue is contracting
B)Heart![]()