Cellular respiration and photosynthesis are complementary processes because they use each others' products and reactants.
Photosynthesis' products are cell respiration's reactants; likewise, cell respiration's products are photosynthesis' reactants.
Also, photosynthesis is known to take away carbon dioxide from the air and put in oxygen while cellular respiration does the opposite, putting in carbon dioxide while taking away oxygen.
They convert glucose into usable energy.
Because if animals dint have a good habitat they wont have a desent place to bd in
The answer to this is the remains and waste products of plants, animals and other living things organisms.
