Cells are part of of all living things.If we didn’t have cells we wouldn’t be able to define whether something is alive or not. Cells make tissue in the body too and tissue makes organs like your brain, heart, liver, spleen & stomach so therefore without them we wouldn’t exist.
Nitrogenous base, a Sugar, and Phosphate group
Different biological bodies react completely different to bodily situations. So I am going to conclude that all of the above can upset the balance of an ecosystem.
A lipid does, it forms a phospholipid bilayer.