Question

this is a control mechanism that monitors levels of a substance and triggers a change in physiology to bring levels back to normal when the substance is not normal. thermostat sliding scale hormone storm negative feedback

Explanation:

Negative feedback is a control mechanism in physiology that monitors substance levels. When levels deviate from normal, it triggers responses to restore them to normal. A thermostat controls temperature, a sliding - scale is a measurement or adjustment tool, and a hormone storm is an intense surge of hormones.

Answer:

Negative feedback