The fins used by fishes primarily for maneuvering are

One of the purposes of transcription is to produce a sequence of bases that

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.

Why are human population trends difficult to predict?