Answer:
I think it was Thomas Hunt Morgan
Its is to remove liquid waste from the blood in the form of urine, and keep a stable balance of salts and other substances in the blood and produce erythropoietin, hormone that is the formation of ref blood cells. The kidney remove ursa from the blood through this filtering units called nephrons
The body structure ( ovaries, testes, and external genitalia) that make sexual reproduction possible. Secondary spermatocytes
converting food into smaller molecules
