Simple categories matching unicellular:

• organism,
• parasite,
• microorganism,
• phytoplankton,
• form,
• eukaryote,
• being,
• microbe,
• creature,
• algae,
• plant,
• animal,
• protoctist,
• pathogen,
• plankton,
• protist,
• system,
• chlorophyte,
• anaerobe,

Members with property unicellular:

• yeast,
• infusoria_euglena,
• prokaryote,
• bacteria,
• chlorella,
• unicellular_algae,
• amoeba,
• diatom,
• tetrahymena,
• somatic_cell,
• myxomycetes,
• escherichia-coli_bacterium,
• algae,
• plant,
• animal,
• magnetic_bacteria,
• blue-green_algae,
• protozoan_paramecium,
• protist,
• fungus,
• fungi,
• protozoan_parasite,
• several_bacteria,
• cryptophyte_alga,
• protozoa,
• desmid,
• paramecium,
• saccharomyces-cerevisiae_yeast,
• salmon,
• freshwater_chlorella,
• escherichia,
• plant-cell_suspension,
• unicellular_form,
• mammalian_cell,
• ciliate,
• xenopus,
• algae_cell,
• filament_algae,
• mycobacterium,
• leishmania,
• malarial_parasite,
• mycoplasma,
• colonial_flagellate,
• plasmodium,
• mold,
• trichomonad,
• phytoplankton,
• halophile,
• cell,
• virus,
• blue-green_bacteria,
• pigeon,
• ameba,
• ciliated_protozoa,
• tetra,
• euglena,
• cryptophyte,
• fly,
• myxobacteria,
• common_yeast,
• unicellular_fungi,
• flagellate_protozoa,
• fungal_cell,
• human_ref,
• protozoan,
• ciliated_protozoan,
• bacterium,
• cyanobacteria,
• filamentous_fungi,
• ciliated_tetrahymena,
• monad,
• primitive_protozoan,
• dinoflagellate,
• giardia,
• sporozoa,
• foraminifera_fig,
• rickettsia,
• species,
• yeast_cell,
• bacterial_cell,
• planktonic_algae,
• candida,
• corpuscle,
• flagellate,
• vertebrate,
• said_vector,
• fission_yeast,
• radiolarian,
• calcareous_algae,
• marine_chlorella,
• chlorophyte,
• methanogen,