O2
plants need carbon dioxide which come from animals respiration
Sugars are the fuel for respiration. Respiration fulfills the energy need of cell
Oxygen for respiration
Animals require higher rate of respiration as they move from one place to another and therefore they need more energy. There the rate of respiration in animals is than in plants. They require more enrgy.
Photosynthesis: Plants do the Photosynthesis, if they don't, they die. If the plants die, then herbivores will die out and the carnivores will go with them.Cellular Respiration:
Not always. When they don't they die.
Animals need oxygen to carry out life processes. Plants need carbon dioxide. Some animals and plants can use either if they need to.
Both, all living things under go respiration as they all need energy to live
If earth had no carbon dioxide then no plants (or animals) would have ever evolved because they all need it for respiration to take place.
because if they had no sunlight they wouldn't have the energy they need to use respiration in cells
No, animals get the Oxygen they need from breathing in air as part of the process of respiration, this has nothing to do with digesting food.
Yes, for humans and most other animals, but not for most plants and some bacteria.It is need only for aerobic respiration. Anaerobic respiration does not require oxygen