No it’s not. It is a problem in most of the first world and in a majority of the second world.
1 what are the three structures of the cardiovascular system
Answer:
A genetic disorder, in which the lungs and the digestive system get clogged with mucus.
Cystic fibrosis is caused by a change (mutation) in the gene
or inherited
Explanation:
Answer:
What causes a stroke? A stroke is caused when blood flow to your brain is stopped or disrupted. There are 2 kinds of stroke: ischemic and hemorrhagic.
Explanation: