Answer:
Choice C: The brown circle A is a receptor, and the blue circle B is an effector.
Explanation:
Which of the following statements best describes the image?
a. The brown circle A shows neurotransmitters being released, and the blue circle B shows neurotransmitters being absorbed.
b. The brown circle A is an effector, and the blue circle B is a receptor.
c. The brown circle A is a receptor, and the blue circle B is an effector.
d. The brown circle A shows neurotransmitters being absorbed, and the blue circle B shows neurotransmitters being released.
