One kilocalorie (kcal) is the amount of energy needed to raise one ________ of water by 1 degree Celsius.

A) liter
B) tablespoon
C) gallon
D) cup
E) milliliter


A) liter

Anatomy & Physiology

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A vaccine produces its effects by

A. directly attacking the antigens and neutralizing them. B. stimulating a primary immune response. C. chemotaxis, the attraction of antigens to areas where the vaccine can destroy them. D. activating autoantibodies.

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Disorders involving the vagus nerve might cause

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