Biological evolution is an empirically derived model that suggests several descriptive mechanisms for material origins. As an empirically derived model, it can only be agnostic concerning teleological affirmation or denial because purpose cannot be identified by any empirical methods. The descriptive mechanisms associated with biological evolution can operate within empirical science without dabbling in the metaphysics of teleology. Of course that does not mean that this is how it is consistently handled in textbooks and classrooms.
