People get Chicken pox just by contact. It is a contagious disease in other words, an air borne disease.
A vaccination can produce immunity to smallpox
STDs are infections spread from person to person during sexual contact.
Type a b and c are the pathogens
Answer:
D
Explanation:
Chromosomes have genes (that kinda look like spaghetti) on them. They are both located in the nucleus though.
