A person who smokes 1.5 packes daily gets 300 hits of nicotine to the brain each day. One cigarette has an average 10 nicotine in it. If one and a half pack has 30 sticks of cigarette. Nicotine is very very dangerous to a man's health. IT causes several types of caner. But the answer to your question is letter C - 300.
Breaking the body into systems is in most cases a lot easier for the students to understand instead of just doing it all at once
It would be C, gender and size. Smaller people have higher blood alcohol concentration, which is how much alcohol is in the bloodstream, compared to larger people. Also, females reach higher blood alcohol concentration faster than males because they have less water in their bodies to dilute it and less enzymes to break it down. Hope this helps!