Multiple Choice
In comparing the bird circulatory system to the mammal circulatory system,the bird system has
A) a cross vein in the neck to keep blood flowing to the brain as the head is turned.
B) a much faster heartbeat.
C) the right aortic arch,instead of the left as in mammals,leading to the dorsal aorta.
D) larger arteries to the wings and breast.
E) All of the choices are correct
Correct Answer:
Verified
Correct Answer:
Verified
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