Answer:
to break down dead or decaying things
Explanation:
Answer:
<h3>30 calories</h3>
Explanation:
<h3> I hope it's help you</h3>
The answer is a. Because think of the flu for example. The flu vaccine is designed to recognize flu pathogens, then from time time if you have the flu, You body will recognize the pathoges and fight the flu. Some people even become immune to the flu.