Answer:
d. cellular respiration
Explanation:
mitochondria is where cellular respiration occurs, and photosynthesis occurs in the chloroplast, so d would be the most reasonable answer.
It would be impossible to feel them move because they are moving to slow for us to realize it. Well, that is what I think.
Weather is short period climate is over a period of years
I think it’s 75% I’m so sorry if it’s wrong