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.
The mouse population would be affected because of the relationship between mice and owls have in the food chain is competitive, thus meaning the mouse population would decrease.
