Answer:
because the pathogens is th body which can inside our body.
Explanation:
i dont think this is right answer
B. nurse. hope that helps...
The heart itself needs blood and nutrients to work properly and gets its share of blood supply from coronary arteries. Coronary heart diseases are linked to coronary arteries. The diseases of coronary arteries are very dangerous; coronary artery diseases like atherosclerosis may cause heart attack.
