<span>When a person smokes a cigarette, the body responds immediately to the chemical nicotine in the smoke. Nicotine causes a short-term increase in blood pressure, heart rate, and the flow of blood from the heart. It also causes the arteries to narrow. Carbon monoxide reduces the amount of oxygen the blood can carry. This, combined with the effects produced by nicotine, creates an imbalance in the demand for oxygen by the cells and the amount of oxygen the blood is able to supply.
So the answer is D. increased heart rate</span>
1. Cells are the fundamental unit of structure and function in living things.
2. All living things are composed of cells.
3. All cells come from preexisting cells.
D) Individuals desire personal growth in order to reach their full potential.
