He could try taking a break from some or alternate which ones he wants to do
Mitochondria make energy for the cell to work and function. The chloroplast turn sun light into chemical energy. I guess you could say, that they use each-others energy.
Hope I helped!
The correct answer is D.
When looking for advocacy opportunities, which would mean looking for ways to lend your support to people or to a cause, the amount of compensation that you would receive should not be relevant to you. You should be more concerned with a sense of fulfillment, working with your interests and passions and helping your school, neighborhood and community. Those are the important factors. Otherwise you are going to make a terrible advocate.
The answer is D.
Have a nice day