#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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