If Cecelia wants to lower her heart rate she should lower the speed she is going at on her tradmill so that she does not have to breath was much for oxygen
Answer: with a paper document
Explanation:
It makes the lines and striations in the muscles more visible. So basically it just makes the muscle definition easier to see. Hope that helps!
Answer:
the answer should be A. It assists organisms in obtaining certain dissolvable substances
Explanation:
