Which of the following is a benefit of physical activity? A. More anxiety
B. Better concentration
C. Less need for sleep
D. More weight gain

Which of the following is true about marijuana? a) commonly known as the date ra.pe drug b) also called smack c) a common drug used for "relaxation d) also known as laughing gas

How do nicotine and tobacco cause cancer? by decreasing blood-sugar levels by damaging or changing a cell's dna by increasing heart rate by increasing phlegm and mucous production

How does fluid in the body become lymph? how is it returned to your blood