29. Examin circulatory system? a. It allows e the figure below. What is the ADVA

Question

29. Examin circulatory system? a. It allows e the figure below. What is the ADVANTAGE to this configuration for a oxygenated blood to mix with deoxygenated blood in the ventricle of the heart, increasing efficiency b. It increases blood flow across the gills cBy directing blood flow on different heart contractions, it allows the gas exchange surfaces to be bypassed if the animal is not in a situation where gas exchange is effective d. There is no advantage. Skin Tissues Lung artery veft atrium Aorta Heart Ventricle right atrium (c) Frog 30) In mammals, where is the control center for regulating blood pressure? a, the hypothalamus b. the brain stem c. the skeletal muscles and skin d. the rete mirabile e. none of the above

Explanation / Answer

29.c by directing blood flow .Different heart contractions,it allows the gas exchange surface, to be bypassed if the animal is not in a situation where gas exchange is effective.

30.a

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