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
Answer:
Even though smoking rates have long been on the decline, nicotine addiction still affects 20% of the US population today. Moreover, nicotine dependence shows high comorbidity with many mental illnesses including, but are not limited to, attention deficit hyperactivity disorder, anxiety disorders, and depression.
Your answer is B.suggest other alternatives
He could develop sickness as to a bad cold. His bones will then become fragile.
1) You can say that you're busy so you won't be able hang out with him or her
2) Say that you don't define ,whatever they are doing, as cool so you will pass
3) You can say that you don't feel well and you have to stay in bed
Hope this helps!! :D