Which theory suggests that all cells come from other cells

Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above

Has anyone taken the genetics unit test in connexus? not looking for answers, just a little bit what to expect and some with studying.

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.