Answer:
it is, Cardiovascular
Explanation:
New study says cycling 30 miles per week cuts heart disease and cancer risk in half.
Answer:I would answer this but I need to see more of the question first
Explanation:
Like I need a set of answers to pick from
Answer:
The system that is in control of your breathing and is heavily dependent on your lungs
Explanation:
The answer your looking for is B
