Answer:
mucus.
Explanation:
Mucus is an important part of the immune system. It traps bacteria and other pathogens and keeps them from entering the body.
hope this helped :)
Explanation:
the answer is 437,028....13 million in US dont know they have it.
Answer:
be unhealthy and possibly sick, he will not be as healthy as the infants that are shown on the tv ,and whatever she has eaten or drank is in her breast milk also,