The flora (plants) and fauna (animals) found on the bottom of any body of water are called what?

The image shows embryos of three vertebrate classes

Describe characteristics of a good respitory surface

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.