Question

excretion and osmoregulation human system notes​

Answer 1

Excretion and Osmoregulation:

The process of elimination or removal of harmful substances from the body is known as excretion. The organs associated with the removal of harmful substances known as excretory system. Major excretory system is urinary system because most of the nitrogenous waste products, excess water and other toxic substances are thrown outside as urine. Skin, lungs liver and intestine are known as accessory excretory organs. Nitrogenous waste products are eliminated by urinary system (kidney).Volatile substances (alcohol, water vapour) are eliminated by lungs. Skin removes salts, water and fat derivatives.