B) exercise-associated muscle cramps
Yes it is because many drug users use things such as syringes and needles and thats how it is spread and also they have very low immune systems most of them making it a higher risk of them to get a infectious disease such as HIV,Aids
Answer:
Genes are the instructions inside each of your cells. They control how you look and how your body works. Since everyone has slightly different genes, everyone has a different set of instructions. Genes are one reason why you are unique!
Explanation:
