What do animals get rid of that plants do not need to get rid of?

Animals excrete nitrogenous waste products, such as urea or ammonia, that result from protein metabolism. Unlike animals, plants primarily eliminate excess water and certain minerals through transpiration and root exudates. Additionally, animals may release carbon dioxide through respiration, while plants utilize carbon dioxide for photosynthesis. Thus, the specific waste products and metabolic processes differ significantly between the two kingdoms.