A because it’s fuel which would make it generate something.
The changing species concept has affected classification systems by distinguishing one species from the other. It has the effect of making to appear that species and their distinctive attributes are external and fixed. The reason for that because o the evolutionary process they have undergone.
Answer:
Your muscle cells need oxygen so that they can do cellular respiration. when they do that they charge up ATP and then use that to move in accordance to how your brain tells you to.
