Answer:
The respiratory centers that control your rate of breathing are in the brainstem or medulla. The nerve cells that live within these centers automatically send signals to the diaphragm and intercostal muscles to contract and relax at regular intervals.
Chloroplast is a part in a plant cell. It is the site at which photosynthesis occurs (light energy converted into oxygen).
The third option "Rhyolitic" would be your answer.
Some of the light energy is converted to chemical energy. During this process, a phosphate is added to a molecule to cause the formation of ATP. ... The ATP then provides energy to some of the other photosynthetic reactions that are causing the conversion of CO2 into sugars. During photosynthesis, energy from sunlight is captured and used to produce sugar molecules.