Circulation in amphibians has which of the following features?
A) An unseparated blood stream and a three-chambered heart
B) A partially separated blood stream and a two-chambered heart
C) A completely separated blood stream and a four-chambered heart
D) A partially separated blood stream and a three-chambered heart
E) An unseparated blood stream and a four-chambered heart
Correct Answer:
Verified
Q3: In an animal with an open circulatory
Q4: Which groups of vertebrates have a completely
Q5: In vertebrate animals, functional separation of deoxygenated
Q6: In primitive vertebrates the sixth aortic arch
Q7: In the heart of a fish, a
Q9: In the conus arteriosus of the frog,
Q10: The pattern of circulation in a submerged
Q11: In the mammalian heartbeat
A) contractions are initiated
Q12: In mammalian hearts, the wall of the
Q13: In diastole
A) blood is pumped from ventricles
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