Homeostasis

Question 1

Stimulus

Answer 1

a change in the environment
(like loss of blood)

Question 2

receptor

Answer 2

receives information that something in the environment is changing

Question 3

Control center

Answer 3

receives and processes information from the receptor

Question 4

Effector

Answer 4

any organ or tissue that receives information from the control center and acts to bring about changes needed to maintain homeostasis