Transcript text: Adapted from Biology by Campbell and Reece \& Pearson Education, Inc.
Place the terms in the appropriate blanks to complete the sentences. Not all terms will be used.
negative
1. This heating system maintains room temperature at or near a particular value, known as the
sensor
increases
2. You open the window, and a blast of icy air enters the room. The temperature drops to 17 degrees Celsius, which acts as a $\square$ to the heating system.
set point
stimulus
3. The thermostat is a $\square$ that detects the stimulus and triggers a response.