The fluid-filled structure in the ear that sends information to the brain about sound is the a. tympanum b. oval window c. stirrup d. cochlea

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.