Q.

Insulin -

A. increases blood sugar
B. decreases blood sugar
C. constricts blood vessels
D. stimulates lactation
Answer» B. decreases blood sugar
Explanation: Insulin is central to regulating carbohydrate and fat metabolism in the body. It stops the use of fat as an energy source by inhibiting the release of glucagon. It removes excess glucose from the blood, which otherwise would be toxic.
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