Human excretory organs

Which are the excretory organs in humans? kidneys liver lungs skin Which are the waste products of human excretion? Name the organs depicted below.Then list which are the waste products (excretory products) for each one of them.Add one waste product only in each blinking spot (writtenly) in the correct order of abundance: skin water salt urea kidneys excess water urea excess salt bile pigments excess iron carbon dioxide water vapour lungs liver