Answer: Nervous system
Explanation:
The cerebellum of the brain is the structure of the nervous system known to control various muscles of the body that are involved in involuntary activities such as breathing.
Thus, the nervous system controls and regulates a person's breathing
Answer:
6 and 6
Explanation:
All elements have an equal number of protons and neutrons
<span>Refraction happens when there</span> is a bending of path of a light wave as it
passes across the boundary separating two media and the degree of bending is
determined in part by the total change in velocity as the light<span> passes from one medium to the other. In
addition, the change in speed experienced by a
wave when it changes medium can result in a number of beautiful optical effects. </span>
