D. physics
Physics is a field of study contributes ideas and concepts to biomechanics.
<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>
awnser is A growth, repair.
Answer:
Embryo
Explanation:
In the first 2-8 weeks of life after fertilization, the life in the womb is referred to as an Embryo. I ope this helps :)