In primitive vertebrates the sixth aortic arch carried blood from the ventral aorta through the gills to the dorsal aorta. In reptiles, birds and mammals, the derivative of this vessel carries
A) oxygenated blood from the lungs to the heart.
B) deoxygenated blood from the lungs to the heart.
C) deoxygenated blood from the heart to the lungs.
D) oxygenated blood from the heart to the body.
E) oxygenated blood from the heart to the coronary artery.

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The Answer of In primitive vertebrates the sixth aortic arch carried blood from the ventral aorta through the gills to the dorsal aorta. In reptiles, birds and mammals, the derivative of this vessel carries
A) oxygenated blood from the lungs to the heart.
B) deoxygenated blood from the lungs to the heart.
C) deoxygenated blood from the heart to the lungs.
D) oxygenated blood from the heart to the body.
E) oxygenated blood from the heart to the coronary artery.

In Primitive Vertebrates the Sixth Aortic Arch Carried Blood from the Ventral