What happens when an individual suffers a bacterial infection in his legs?
a. the digestive system will digest and excrete the bacteria.
b. the endocrine system will create hormones in response to the bacteria.
c. the immune system will digest the bacteria and produce antigens.
d. the respiratory system will exhale the bacteria out of the body after it reaches the lungs.

The best answer is C.

When an individual suffers a bacterial infection in the legs, immune proteins called acute phase proteins  bind to the surface of the bacteria by a process called opsonisation.

Opsonised bacteria are therefore coated with molecules (self antigens) that phagocytic cells recognize. Activated phagocytes  engulf and destroy opsonized  bacteria by "swallowing "  (engulfing) them.

Inside the phagocyte, enzymes break down the bacteria onto small fragments just the way food is broken down by enzymes in the digestive system. Phagocytes then present the fragments on their surface which helps in the final destruction of the bacteria within the phagocyte.

g1

choices:

a. g2. b. g1. c. m

cell division has two checkpoints namely, g1

checkpoint and spindle assembly checkpoint. the checkpoint which determines if

division has properly occurred is the g1 checkpoint. at this point, is a damage

in the dna is detected or  the has not reach the optimum size, the cell is

stopped in g1 and is not allowed to proceed to further process.

source:

b

is correct hope this   also i learnd this in middle school