Question

A small child managed to eat a bit of dirt while playing outside. Which of the following would prevent the child from getting sick from the bacteria ingested?
A If there were not a pathogenic bacteria in the dirt

B If the child had previously taken antibiotics for that type of bacteria

C If the child already had the antibodies to fight the bacteria

D If the child’s cells had complementary receptor molecules that bind to the bacteria

Answer 1

Answer:

C If the child already had the antibodies to fight the bacteria

Explanation:

There are a lot of bacteria that we have already storage antibodies for, our immune system is like a database of antibodies that learns with every disease we get, some of them won´t even manifest, because our immune system is strong and produces enough antibodies to counterattack the germs. So from the options given, the most reasonable and possible is that the kid already had the antibodies to fight that bacteria.

Answer 2

Lost likely would be c because the child wouldn't have to do anything cuz he already has the antibiotic in him