The answer is:
Glands,Skin,Nails,Nerves and Hair.
I hope this helps :D
D bacteria are the main nitrogen transporters
The excretory and urinary are not the same because the excretory system is collective for all system performing the function of eliminating waste from the body like excess water,urea, carbon dioxide and lactic acid but the urinary system focuses on removal of excess water and urea from the body