both refer to movie chains (i.e., Loews, AMC Theatres) with movie theatres that screen more than one film at a time, as opposed to single-screen theatres. A multiplex has from 2 up to 16 screens, a megaplex has 16 or more screens; plex is the abbreviation for a multiplex theatre.
A morula (Latin, morus: mulberry) is an early stage embryo consisting of cells (called blastomeres) in a solid ball contained within the zona pellucida.
By Jennifer Kennedy. Definition: The radula is a special structure used by many molluscs to scrape food off rocks or create depressions in rocks that the mollusc uses for habitat.The radula has many rows of tiny teeth that are replaced as they wear down.One animal that has a radula is the common periwinkle, which uses its radula to scrape algae off rocks for food. Examples: The limpet is a marine invertebrate that uses its radula to create a home by boring a shallow hole into a rock.ne animal that has a radula is the common periwinkle, which uses its radula to scrape algae off rocks for food. Examples: The limpet is a marine invertebrate that uses its radula to create a home by boring a shallow hole into a rock.