Answer: Lungs eliminating water and carbon dioxide.
Explanation: The excretory system is the body system that helps to release and eliminate waste from the body. Oftentimes, organs of some system maybe organs of another system.
The organ of the excretory system are also parts of other systems.
The lungs are part of the respiratory system however, lungs removes carbon dioxide as waste from the body thus lungs are also part of the excretory system.
Tree frogs use plants as protection. Golden jackals, once they have been expelled from a pack, will trail a tiger to feed on the remains of its kills. Goby fish live on other sea animals, changing color to blend in with the host, thus gaining protection from predators.
