What is excretion

Answer 1

Excretion is the biological process by which waste products and metabolic by-products are eliminated from an organism. It is a vital process for maintaining homeostasis, removing potentially toxic substances from the body, and regulating the balance of water, electrolytes, and other chemicals. In humans and most animals, excretion primarily occurs through the urinary system, respiratory system, gastrointestinal tract, and sweat glands.