A. dea
Drug Enforcement Agency
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.
Answer:
False
Explanation:
Because genetics are influenced by the socioeconomic functions and traditions of the culture, slowly influencing and evolving the average body for a descendant of said culture.
There are several sphincters that appear along the gastrointestinal tract in the human body. The sphincters are; upper esophageal, lower esophageal, pyloric, ileocaecal, and the inner and outer anal sphincters.