Why is producer important in an ecosystems?

Which nucleotide component contains nitrogen

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.

Does all the energy stored by the phytoplankton reach the top level of the pyramid