Plants implement the following methods to eliminate waste: - Gaseous Exchange: Carbon dioxide (due to respiration) and oxygen (due to photosynthesis) exit through stomata and lenticels. - Exudation: Excess moisture is eliminated by the plant via guttation or transpiration. - Storage: Some of the waste materials are stored in leaves, bark, and even vacuoles and discharged whenever such parts are shed. - Conversion: Elimination of toxic materials like ammonia or its derivatives by forming non-toxic compounds such as alkaloids or resins one of the physiological adaptations of plants that help them in their survival under various ecological conditions.