Question

An involuntary response to a drop in the temperature outside or inside the body of a warm-blooded animal is

Answer 1

Shivering

Step-by-step explanation:

Shivering refers to rhythmic skeletal muscle contraction that generates heat by stimulating ATP hydrolysis. It raises the body temperature during cold conditions. Lowering down the body temperature below the average range is followed by shivering of skeletal muscles to generate heat and to bring back the body temperature to normal range.