I think it might be d. the lungs expand and contract which increases the rate of blood flow so the muscles can convert and store energy
Answer:
A good way to make friends is to start with people you have things in common with. If you are in a club or on a sports team that is a good place to start. Benefits of having friends is
Stronger immunity
Lower stress
Improved self-confidence
Increased happiness
Better overall health
Explanation:
Answer:
Testable prediction that gives direction to research.
Explanation:
A hypothesis is an explanation that can be accepted in a provisional way, but has the objective to provide sufficient guidance for further investigation.
It is also considered testable because it can be proven right or wrong, it means it is possible to be verified.
His muscles are getting stronger and have to break down to do so and that process hurts.
Answer:The awnser is B nurses because they are in there the most taking care of them I know because my grandma used to be a physc nurse and she would get hurt sometimes
