Larry is taking a walk in the park. The pollen in the air makes him sneeze constantly. The line of defense that is his immune system exhibiting is that of "(A) first line of defense." There are only 3 lines of defense in the immune system. The first line of defense <span>are a combination of physical and chemical barriers that prevent all types of foreign agents from penetrating the outer layer of the body. In this case, it is the nasal cavity</span>
Most of the time, coins pass through children's bodies and cause no harm. So, if a child doesn't choke or do anything alarming after swallowing a coin, most of the time it means they're okay. Knowing what fertility is tho, the coin is definitely not causing it. Coins aren't too thick and they'd decompose cuz of the acid in less than 10 years.
*I REALLY hope this is just a random question and isn't really happening right now in your life. God Bless :)
