Acne is to excessive secretion of oil, I think.
Answer:
food and exygen.....as oxygen breakes food in small parts
Answer: It can increase blood pressure.
Explanation:
This is also known as the cardiovascular system! To sum its function up quick and easy, this system delivers nutrients and oxygen to all the cells in the body. Let’s look at it this way; this system is initially the heart and the blood vessels running throughout our body. The process is quite quick. The arteries carry the blood, away from the heart, then the veins manage to carry it back to the heart. It keeps the heart pumping, and keep us alive!