One interaction between the nervous system and the skeletal system involves the calcium stored in the bones. The nervous system requires calcium for the proper transmission of nerve impulses. In which other way do the skeletal and nervous systems interact?

A. Red blood cells are produced in bone marrow.

B. The brain controls the contraction of muscles.

C. Bones protect the brain and spinal cord from injury.

D. The brain helps mount a defense against foreign bodies.

How do temperature and salinity affect deepwater currents? question 15 options: as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.