Research has shown that if a prescribed course of antibiotics is not completed that some bacteria may survive and the infection may return. How can natural selection or survival of the fittest be used to explain this happening?

Which statement best explains why cells were observed in more detail using a compound microscope than a simple microscope? a compound microscope has greater magnification ability than a simple microscope. the compound microscope was invented before the simple microscope. a compound microscope is much easier to manufacture than a simple microscope. compound microscopes were more common than simple microscopes.