Question

How does the immune system work together with the circulatory system to function properly?

A.
The immune system's red blood cells fight and destroy foreign antigens.

B.
White blood cells move through the body (to parts where they are needed) in the blood vessels of the circulatory system to destroy pathogens.

C.
The circulatory system's arteries cause the immune system to work harder by bringing oxygen-depleted blood to the infection site.

D.
Red blood cells released by immune cells cause increased blood flow to the infection site; this increased blood flow brings other red blood cells to the area more quickly.

Answer 1

The correct is actually D , this is a question I have reviewed before in the past and the correct answer is def D as I remember clearly , I forgot how I explained it but I know for sure the answer is D :)

Have a merry Christmas !

Answer 2

The answer is probably B because white blood cells are part of the immune system, so help to fight diseases. The circulatory system helps to move the white blood cell around the body. Also, pathogens are disease causing organisms, and as you can see, they all relate very well. Hope i helped, have a nice day.