Respuesta :

anjalee
Both are made of many parts that work together to keep it running and if one part fails, the whole thing has a problem.

                                Hope this helps:)
sammisalmeron

both the body system and the ecosystem are functioning on some sort of cycle. such as the ecosystem runs on the water cycle, the produce & consumer cycle. and the body system runs on the blood cycle, digestive system cycle.. etc.. etc..