#protoctist any of the unicellular protists
supertype: microorganism any organism (animal or plant) of microscopic size
member of: kingdom_Protoctista
subtype: protozoan__protozoon any of diverse minute acellular or unicellular organisms usually nonphotosynthetic
subtype: sarcodinian__sarcodine protozoa that move and capture food by forming pseudopods
subtype: actinopod protozoa having stiff rodlike radiating pseudopods
subtype: heliozoan protozoa with spherical bodies and stiff radiating pseudopods
subtype: radiolarian protozoa with amoeba-like bodies and radiating filamentous pseudopods
subtype: rhizopod__rhizopodan protozoa characterized by a pseudopod
subtype: ameba__amoeba naked freshwater or marine or parasitic protozoa that form temporary pseudopods for feeding and locomotion
subtype: endameba any ameba of the genus Endamoeba
subtype: Endamoeba_histolytica the parasitic ameba that causes amebic dysentery in human beings
subtype: foram__foraminifer marine microorganism having a calcareous shell with openings where pseudopods protrude
subtype: globigerina marine protozoan having a rounded shell with spiny processes
subtype: nummulite large fossil protozoan of the Tertiary period
subtype: testacean any of various rhizopods of the order Testacea characterized by having a shell
subtype: arcella an amoeba-like protozoan with a chitinous shell resembling an umbrella
subtype: difflugia a protozoan with an ovoid shell of cemented sand grains
subtype: ciliate__ciliated_protozoan__ciliophoran a protozoan with a microscopic appendage extending from the surface of the cell
subtype: infusorian any member of the subclass Infusoria
subtype: paramecium__paramecia any member of the genus Paramecium
subtype: tetrahymena relative of the paramecium; often used in genetics research
subtype: stentor any member of the genus Stentor
subtype: vorticella protozoa having a transparent goblet-shaped body with a retractile stalk
subtype: euglena minute single-celled green freshwater organism having a single flagella; often classed as algae
subtype: flagellate_protozoan__flagellate__flagellated_protozoan__flagellatedprotozoan__mastigophoran__mastigophore usually nonphotosynthetic free-living protozoan with whiplike appendages; some pathogens of humans and other animals
subtype: dinoflagellate chiefly marine protozoa having two flagella; a chief constituent of plankton
subtype: noctiluca__Noctiluca_miliaris large bioluminescent marine protozoan
subtype: peridinian flagellate with a thick test composed of plates
subtype: genus_Leishmania__Leishmania flagellate protozoan that causes leishmaniasis
subtype: zoomastigote__zooflagellate flagellate protozoan lacking photosynthesis and other plant-like characteristics
subtype: hypermastigote flagellate symbiotic in the intestines of e.g. termites
subtype: polymastigote flagellates with several flagella
subtype: costia__Costia_necatrix a flagellate that is the cause of the frequently fatal fish disease costiasis
subtype: giardia a suspected cause of diarrhea in humans
subtype: trichomonad cause of trichomoniasis in women and cattle and birds
subtype: plantlike_flagellate__plantlikeflagellate unicellular organisms having many characteristics of typical algae
subtype: sporozoan parasitic spore-forming protozoan
subtype: sporozoite one of the minute active bodies into which sporozoans divide in one stage of their life cycle
subtype: trophozoite a sporozoan in the active feeding stage of its life cycle
subtype: merozoite a cell that arises from the asexual division of a parent sporozoan during its life cycle
subtype: coccidium__eimeria parasitic on the digestive epithelium of vertebrates and higher invertebrates
subtype: gregarine vermiform protozoans parasitic in insects and other invertebrates
subtype: haemosporidian minute protozoans parasitic at some stage of the life cycle in blood cells of vertebrates including many pathogens
subtype: Plasmodium_vivax__plasmodium__malaria_parasite__malariaparasite parasitic protozoan of the genus Plasmodium that causes malaria in humans
subtype: haemoproteid related to malaria parasite and having a phase in the viscera of various birds
subtype: leucocytozoan__leucocytozoon parasitic in birds
subtype: piroplasm minute parasite of red blood cells of mammals transmitted by a tick and causing diseases of domestic animals
subtype: sarcosporidian__sarcocystidean__sarcocystieian parasite of the muscles of vertebrates
subtype: haplosporidian parasite in invertebrates and lower vertebrates of no known economic importance
subtype: actinomyxidian parasites of worms
subtype: microsporidian parasite of arthropods and fishes that invade and destroy host cells
subtype: myxosporidian mostly parasitic in fishes and including various serious pathogens
subtype: alga__algae primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves
subtype: seaweed plant growing in the sea, especially marine algae
subtype: arame an edilbe seaweed with a mild flavor
subtype: wrack dried seaweed especially that cast ashore
subtype: seagrass any of various seaweeds that grow underwater in shallow beds
subtype: sea_wrack__seawrack__wrack growth of marine vegetation especially of the large forms such as rockweeds and kelp
subtype: sea_tang__seatang__tang any of various coarse seaweeds
subtype: golden_algae algae having the pigments chlorophyll and carotene and xanthophyll
subtype: yellow-green_algae any alga of the division Chrysophyta with its chlorophyll masked by yellow pigment
subtype: conferva any of various algae of the genus Tribonema; algae with branching filaments that form scum in still or stagnant fresh water
subtype: diatom microscopic unicellular marine or freshwater colonial alga having cell walls impregnated with silica
subtype: confervoid_algae algae resembling confervae especially in having branching filaments
subtype: brown_algae__brownalgae algae having the chlorophyll masked by brown and yellow pigments
subtype: kelp large brown seaweeds having fluted leathery fronds
subtype: sea_tangle__seatangle__tang any of various kelps especially of the genus Laminaria
subtype: fucoid_algae__fucoid any of various algae of the family Fucaceae
subtype: rockweed coarse brown seaweed growing on rocks exposed at low tide
subtype: fucus__fucu any member of the genus Fucus
subtype: black_rockweed__blackrockweed__bladderwrack__bladder_fucus__bladderfucu__tang__Fucus_vesiculosus common black rockweed used in preparing kelp and as manure
subtype: bladderwrack__Ascophyllum_nodosum similar to and found with black rockweed
subtype: serrated_wrack__Fucus_serratus__tang brown algae seaweed with serrated edges
subtype: gulfweed__sargassum__sargasso__Sargassum_bacciferum brown algae with rounded bladders forming dense floating masses in tropical Atlantic waters as in the Sargasso Sea
subtype: euglenoid__euglenophyte__euglenid marine and freshwater green or colorless flagellate organism
subtype: green_algae__greenalgae__chlorophyte algae that are clear green in color; often growing on wet ricks or damp wood or the surface of stagnant water
subtype: sea_lettuce__sealettuce__laver seaweed with edible translucent crinkly green fronds
subtype: pond_scum free-floating freshwater green algae
subtype: spirogyra freshwater algae consisting of minute filaments containing spiral chlorophyll bands
subtype: stonewort any of various submerged aquatic algae of the genus Chara having nodes with whorled filamentlike branches; usually encrusted with calcium carbonate deposits
subtype: desmid freshwater green algae
subtype: chlorella any alga of the genus Chlorella
subtype: red_algae__redalgae marine algae in which the chlorophyll is masked by a red or purplish pigment; source of agar and carrageenan
subtype: sea_moss any of various red algae having graceful rose to purple fronds (e.g. dulse or carrageen)
subtype: Irish_moss__carrageen__carageen__carragheen__Chondrus_crispus dark purple edible seaweed of the Atlantic coasts of Europe and North America
subtype: dulse__Rhodymenia_palmata coarse edible red seaweed
subtype: red_laver__redlaver__laver edible red seaweeds
subtype: cryptomonad__cryptophyte common in fresh and salt water appearing along the shore as algal blooms
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