Plants and animals both have in common the process of cellular respiration, which is the process by which they break down nutrients to produce energy. They also both engage in the absorption of water, which is necessary for various physiological processes to occur. Additionally, plants and animals both undergo the process of photosynthesis, with plants utilizing sunlight to convert carbon dioxide and water into organic compounds and oxygen. Animals do not directly undergo photosynthesis, but they rely on plants to produce oxygen for respiration. Transpiration, the process by which water is lost from plants through evaporation, is also common to both plants and animals, as animals lose water through sweating or breathing.
