A distinction is often made in the natural sciences between the life sciences and the physical sciences. Semantically, I believe this is a false distinction. Since all life depends on a physical dimension, life sciences would be a subset of the physical sciences. However, this defeats the point of the distinction, i.e. to distinguish between science where the system under study is necessarily living (biology), and science where there is no special treatment of living systems (physics and chemistry).
Is there an alternative way to make this distinction?