Question

Which is an example of an organ system?

A.
the brain, spinal cord, and nerves working together for one purpose

B.
the lining of the intestine

C.
lungs taking in oxygen

D.
the compartments that make up the liver and control its function

Answer 1

A. The brain, spinal cord, and nerves working together for one purpose — that's the nervous system, an organ system.