Methane is given off by animals as a waste gas.
Most animals give off carbon dioxide as a waste product for life. This is called "aerobic".
Oxygen
Oxygen is absorbed by the animal, and waste products are released.
Feces, urine, and carbon dioxide are all waste products of animals.
There are a handful of waste products that are products of a plant's respiration. Oxygen is one such waste product.
oxygen
The waste product of photosynthesis is oxygen.
Oxygen and glucose.
Trees get rid of waste with photosynthesis when the let the oxygen out they are also letting waste out...
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.
They convert Oxygen and Sugar into energy and waste products (Water and Carbon Dioxide).
The products of photosynthesis are glucose and oxygen. Many people consider oxygen a waste product. However, plants need oxygen just like animals and other organisms do in order to carry out aerobic cellular respiration. So oxygen is really not a waste product of photosynthesis.