Difference between biological aspect and physical aspect

A biological environment is a physical environment that has living things in it.

The only physical environments that I know of that are not biological environments are human-constructed sterile facilities, or planets/moons/asteroids/other celestial objects that can’t support life.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.