The temperature difference between arterial blood and venous blood near the goose's body
A) is minimized by countercurrent exchange.
B) is maximized because the blood has run through very cold feet.
C) is minimized by dilation of the capillaries in the feet of the goose, allowing heat to be lost.
D) is more than the difference between the venous blood near the body and the venous blood at the feet.
E) allows the goose to lose maximum heat to the environment
Answer: A
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