An example of effectors' roles in homeostatic responses is observable when
A) an increase in body temperature results from involuntary shivering.
B) an increase in body temperature results from exercise.
C) the rising sun causes an increase in body temperature in a stationary animal.
D) an increase in body temperature results from fever.
E) a decrease in body temperature results from shock.

Question

Quizplus · Accepted Answer

Involuntary shivering is a response of effectors (muscles) to maintain homeostasis by increasing body temperature when it drops below the set point.

Answer: D
 A fever is a response to an infection or illness, and effectors such as muscles and the immune system respond by increasing body temperature to help fight off the infection.

An Example of Effectors' Roles in Homeostatic Responses Is Observable