An opposite action to restore homeostasis, such as shivering when cold.

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Multiple Choice

An opposite action to restore homeostasis, such as shivering when cold.

Shivering when cold illustrates how the body uses a negative feedback loop to stay within a narrow temperature range. When core temperature drops, sensors detect the change and the brain (the control center) signals muscles to contract rapidly, generating heat. As heat is produced and temperature rises toward the set point, the initial stimulus (cold) diminishes and the shivering response slows or stops. This counteracts the disturbance and returns the system toward equilibrium. Environmental terms like lithosphere or atmosphere aren’t regulatory mechanisms of body temperature. A positive feedback loop would amplify the change rather than oppose it, which wouldn’t restore balance.

Shivering when cold illustrates how the body uses a negative feedback loop to stay within a narrow temperature range. When core temperature drops, sensors detect the change and the brain (the control center) signals muscles to contract rapidly, generating heat. As heat is produced and temperature rises toward the set point, the initial stimulus (cold) diminishes and the shivering response slows or stops. This counteracts the disturbance and returns the system toward equilibrium.

Environmental terms like lithosphere or atmosphere aren’t regulatory mechanisms of body temperature. A positive feedback loop would amplify the change rather than oppose it, which wouldn’t restore balance.

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