A.   Their bodies consists of many cooperating cells

        B.   The principal body opening is inhalant

        C.   Presence of choanocytes

        D.   Possession of sense organs

        A.   Flatworms

        B.  Corals

        C.   Hydras

        D.   Jelly fishes

        A.   Evolutionary intermediate forms between protozoans and metazoans heterotrophic organisms

        B.   Unicellular autotrophic organisms

        C.   Parasites on a wide range of marine invertebrates

        D.   Parasites of cephalopods

        A.   Nematogens

        B.   Rhombogens

        C.   Inusorigens

        D.   None of the above

        A.   They are similar to demospongiae

        B.   Their choanocytes are small and lack jelly

        C.   They are found associated with coral reefs

        D.   Their skeleton is made up of siliceous spicules and sponging fibres

        A.   The most primitive group of cnidarians

        B.   Exclusively marine cnidarians

        C.   The amazing box jellies

        D.   The true jelly fish

        A.   protein synthesis

        B.   day to day activities

        C.   sexual reproductive activities

        D.   cell division

        A.   they are the most primitive of multicellular animals

        B.   the cells in their bodies are organized into tissues and organs

        C.   presence of choanocytes

        D.   possession of sense organs

        A.   the naming of organisms

        B.   the systematic assignment of organisms to groups called taxa

        C.   a system in which information on organisms are gathered and stored in an orderly manner

        D.   a system that combines taxonomy and systematics

        A.   cell

        B.   organ

        C.   tissue

        D.   organelle

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