C. All forms of tobacco are addictive. Tobacco contains Nicotine, which upon entering the blood stream, affects the user. After frequent uses, the user becomes addicted to the nicotine within the tobacco product.
Answer:With this system, blood always flows in only one direction inside the heart. There are also valves at the bottom of the large arteries that carry blood away from the heart: the aorta and the pulmonary artery. These valves keep the blood from flowing backward into the heart once it has been pumped out.
Explanation:
All possible outcomes of a genetic cross
A. Discarded.
[eww] that's what I think
It’s a frequency that comes from something
