it’s food i have to have 20 characters so
Answer:
Because you body is introduced to the virus, it is familiar to it and can build up an immunity to the weakened form so when the actual virus invades, your body know what to do.
Explanation:
14.) D
15.) C
I'm sitting in school right now I cannot really answer the rest.
A virus normally lies dormant, it becomes only a living organism when it invades a living system.
