Bacteria are prokaryotes .
Protozoa are eukaryotes , unicellular organisms in which the various activities of metabolism, locomotion, etc. are carried out by organelles of the cell. Multicellular Organisms - Organisms composed of more than one cell. A. Super-Phylum Helminthes Theses are worms that are frequently called parasitic worms . Duck-Billed Platypus 2. Eels, Spiny Dogfish, Stingrays 3.