When room temperature is decreased, negative feedback inhibits cooler (function). |
① Winter came. Room temperature is decreased due to the winter chill. Cooler decreases room temperature. These are in the same direction (red).
② Since these are in the same direction, negative feedback inhibits (blue) the cooler (function, such as by turning the power off). Because of this, the room temperature-decreasing effect of the cooler weakens, and the decrease in room temperature (blue downward unfilled arrow) disappears (decreased room temperature increases to the baseline).
This simply says, when room temperature is decreased (during winter), coolers are not used. In the present "Step-By-Step Study of Life Sciences", let's call such control red→blue negative feedback.