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.
Answer:
A
Explanation:
Being healthy and fit does amazing things to your immune system, while it does not make it invulnerable it certainly does help immensely.
It is called ovaries, the role and importance of it is to produce eggs and hormones
Answer:
A and B. Observations and Strength tests
if only one answer allowed, then it's A
