A paleontologist finds a fragment of a fossilized vertebrate that had a four-chambered heart with two atria and two ventricles.The animal could have been a
A) shark.
B) turtle.
C) frog.
D) heron.
E) lizard.
Correct Answer:
Verified
Q25: Oxygenated blood is carried by the
A) aorta.
B)
Q26: In humans,oxygenated blood is transported from the
Q27: In humans,the _ empties into the right
Q28: Which sequence represents the correct order
Q29: The amphibian heart
A) pumps only oxygenated blood.
B)
Q31: Which vertebrate has a three-chambered heart and
Q32: A paleontologist finds a fragment of a
Q33: Mammalian and bird hearts
A) pump only oxygenated
Q34: "Systole" and "diastole" refer to the _
Q35: Which structure or region in a four-chambered
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