human
Question: Which best describes two organ systems working together to help maintain homeostasis?

Choices:
A) The reproductive organs produce sex cells.
B) The nerves carry signals from the eye to the brain.
C) The bones and muscles of the hand work together to grip a pencil.
D) The muscles of the chest tighten to push carbon dioxide out of the lungs.
gpt
The correct answer is 3: The muscles of the chest tighten to push carbon dioxide out of the lungs..