Explain how an ecosystem works within its environment. 

An ecosystem is the biotic and abiotic factors which are responsible for the survival of an animal

Well an ecosyatem is a community of living organisms and nonliving components like air, water... and there are interactions among organisms and between organisms and the environment that surround the ecosystem. it can be subject of external and internal factors; external such as climate, parent material, biota, ecc... this is what i found, hope i've been helpful