Vaccination is a process of injecting a dead or weakened form of a germ into the body. how does this strengthen the immune system? a. it allows the body to increase its internal temperature. b. it allows the body to regulate the inflammation response. c. it allows the body to keep germ information for future infections. d. it allows the body to increase its desire to eat healthy food.

Option C

Explanation:

The vaccination can be defined as the process by which the attenuated form or live form of bacteria is injected inside the body of the organism.

This helps in preparing the body for the future infections. The immune system of the body is prepared by creating the memory cells by the attenuated form of the bacterial cell.

The attenuated form of vaccine or live form evokes the immune response but does not causes infection in the body.

Hence, the correct answer is option C

answer-

the statement that f(x) = |x+a| + b has exactly one x-intercept is sometimes correct.

solution-

it solely depends on b, whether the function will have one or two or zero x intercept.

this plot of the given function, f(x) = |x+a| + b will be the basic absolute value graph i.e v shape, with vertex translated to (-a, b), instead of origin.

1-   if b is zero, the graph will have exactly one x-intercept, at x= -a

2- if b is positive, the whole graph will be above the x-axis, hence it will have no x-intercepts.

3- if b is negative, the graph will be below the x-axis, hence it will have two x-intercepts.

∴ the statement is sometimes true.