HSC Biology 2nd Paper Note 6th Chapter Human Physiology: Wastes and Excretion

HSC Biology 2nd Paper Note 6th Chapter Human Physiology: Wastes and Excretion. Excretion is the process by which metabolic wastes and other non-useful materials, such as feces, are eliminated from an organism. In vertebrates, this is primarily carried out by the lungs, kidneys, and skin. This is in contrast with secretion, where the substance may have specific … Read more