They need waste, bacteria, and plants.
I think that the plant can use the animal waste as fertilizer and plants can serve as food and they give off oxygen.
Oxygen is the waste product of plants that animals need in the process of oxidative phosphorilation.
Two waste products common to plants and animals are carbon dioxide and water. However, only plants that photosynthesize in the dark have water as a waste product.
the waste has nutrients in it that help the plant
Plants help animals by providing food and animals help plants by giving off bodily waste which fertilizes them.
Plants, Animals, and Bacteria
Plants can obtain a variety of things from animals. The main things are CO2 from the exhaust of mammals, and the minerals/nutrients from animals' waste. Nitrogen from chicken waste is a very good example.
animals need plants because animals like deer depend on plants like grass(to eat). and plants need animals because if the animals did not eat the plants then the plants would become an invasive species. and then it would be hard to take back, or exterminate the plant.
The nitrates in nitrogenous waste reduce the oxygen carrying capabilities of the haemoglobin in the blood of animals. Since plants do not have haemoglobin they can absorb it to help them make proteins.
Cell transport (food in, waste out) is driven by the Na+/K+ ATPase pump. Works for both plants and animals.
The animals need the oxygen that plants release.