Steak is high is Vitamin B. B-12 and B-6 are the high ones. B-12 can also be known as Cobalamin.
D because it helps to get the thing that there choking on out of them
Answer:
The skin
Digestive tract
Vagina
Mucous membrane
Explanation:
The skin prevents microbes from entering the body
Digestive tract e.g. stomach acid is a natural defence mechanism
The vagina is acidic and this prevents harmful bacteria from growing with it's own flora.
Mucous membranes e.g. lining of the mouth, nose, eyelids are all defense mechanisms.
