How do the excretory and respiratory systems work together?

The excretory system helps the respiratory system by geting rid of carbon dioxide. The respiratory system helps the excretory system by getting rid of CO2 from the body.  

Used to water and cool climates, probably not thick coated or fluffy. they most likely have thin coats and have to survive to find food. sorry if this wasn't the answer you were looking for..: )

Ihaven't done that yet, so no idea,but this is not the right place to ask