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:
2. improves the health of your muscles and I would think 1. considered exercise but the part with some of the time throws me off
Resting heart rate will be decreased, because your heart and cardiovascular system are being worked out, therefore increasing the muscle tissue within the heart and thereby making it stronger, which makes it beat more powerfully and yeah. So Resting heart rate is the correct answer
Answer:
The answer is A: first class lever
