Meringosphaera Mediterranea
''Meringosphaera'' is a genus of protists belonging to the Centrohelids. The species of this genus are reported to have worldwide distribution including in Eurasia, Africa and Northern America. Species: *''Meringosphaera aculeata ''Meringosphaera'' is a genus of protists A protist () is any eukaryotic organism (that is, an organism whose cells contain a cell nucleus) that is not an animal, plant, or fungus. While it is likely that protists share a common ancestor (t ...'' *'' Meringosphaera mediterranea'' *'' Meringosphaera spinosa'' *'' Meringosphaera tenerrima'' References Haptista {{Hacrobia-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Centrohelida
The centrohelids or centroheliozoa are a large group of heliozoan protists. They include both mobile and sessile forms, found in freshwater and marine environments, especially at some depth. Characteristics Individuals are unicellular and spherical, usually around 30–80 μm in diameter, and covered with long radial axopods, narrow cellular projections that capture food and allow mobile forms to move about. A few genera have no cell covering, but most have a gelatinous coat holding scales and spines, produced in special deposition vesicles. These may be organic or siliceous and come in various shapes and sizes. For instance, in ''Raphidiophrys'' the coat extends along the bases of the axopods, covering them with curved spicules that give them a pine-treeish look, and in ''Raphidiocystis'' there are both short cup-shaped spicules and long tubular spicules that are only a little shorter than the axopods. Some other common genera include ''Heterophrys'', ''Actinocystis'', and ' ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Meringosphaera
''Meringosphaera'' is a genus of protists A protist () is any eukaryotic organism (that is, an organism whose cells contain a cell nucleus) that is not an animal, plant, or fungus. While it is likely that protists share a common ancestor (the last eukaryotic common ancestor), the excl ... belonging to the Centrohelids. The species of this genus are reported to have worldwide distribution including in Eurasia, Africa and Northern America. Species: *'' Meringosphaera aculeata'' *'' Meringosphaera mediterranea'' *'' Meringosphaera spinosa'' *'' Meringosphaera tenerrima'' References Haptista {{Hacrobia-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Eukaryota
Eukaryotes () are organisms whose Cell (biology), cells have a cell nucleus, nucleus. All animals, plants, fungi, and many unicellular organisms, are Eukaryotes. They belong to the group of organisms Eukaryota or Eukarya, which is one of the Three-domain system, three domains of life. Bacteria and Archaea (both prokaryotes) make up the other two domains. The eukaryotes are usually now regarded as having emerged in the Archaea or as a sister of the Asgard (archaea), Asgard archaea. This implies that there are only Two-domain system, two domains of life, Bacteria and Archaea, with eukaryotes incorporated among archaea. Eukaryotes represent a small minority of the number of organisms, but, due to their generally much larger size, their collective global biomass (ecology), biomass is estimated to be about equal to that of prokaryotes. Eukaryotes emerged approximately 2.3–1.8 billion years ago, during the Proterozoic eon, likely as Flagellated cell, flagellated phagotrophs. The ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Protist
A protist () is any eukaryotic organism (that is, an organism whose cells contain a cell nucleus) that is not an animal, plant, or fungus. While it is likely that protists share a common ancestor (the last eukaryotic common ancestor), the exclusion of other eukaryotes means that protists do not form a natural group, or clade. Therefore, some protists may be more closely related to animals, plants, or fungi than they are to other protists. However, like the groups ''algae'', ''invertebrates'', and '' protozoans'', the biological category ''protist'' is used for convenience. Others classify any unicellular eukaryotic microorganism as a protist. The study of protists is termed protistology. History The classification of a third kingdom separate from animals and plants was first proposed by John Hogg in 1860 as the kingdom Protoctista; in 1866 Ernst Haeckel also proposed a third kingdom Protista as "the kingdom of primitive forms". Originally these also included prokaryotes, b ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Centrohelid
The centrohelids or centroheliozoa are a large group of heliozoan protists. They include both mobile and sessile forms, found in freshwater and marine environments, especially at some depth. Characteristics Individuals are unicellular and spherical, usually around 30–80 μm in diameter, and covered with long radial axopods, narrow cellular projections that capture food and allow mobile forms to move about. A few genera have no cell covering, but most have a gelatinous coat holding scales and spines, produced in special deposition vesicles. These may be organic or siliceous and come in various shapes and sizes. For instance, in '' Raphidiophrys'' the coat extends along the bases of the axopods, covering them with curved spicules that give them a pine-treeish look, and in ''Raphidiocystis'' there are both short cup-shaped spicules and long tubular spicules that are only a little shorter than the axopods. Some other common genera include '' Heterophrys'', ''Actinocystis'', and ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Meringosphaera Aculeata
''Meringosphaera'' is a genus of protists A protist () is any eukaryotic organism (that is, an organism whose cells contain a cell nucleus) that is not an animal, plant, or fungus. While it is likely that protists share a common ancestor (the last eukaryotic common ancestor), the excl ... belonging to the Centrohelids. The species of this genus are reported to have worldwide distribution including in Eurasia, Africa and Northern America. Species: *'' Meringosphaera aculeata'' *'' Meringosphaera mediterranea'' *'' Meringosphaera spinosa'' *'' Meringosphaera tenerrima'' References Haptista {{Hacrobia-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Meringosphaera Mediterranea
''Meringosphaera'' is a genus of protists belonging to the Centrohelids. The species of this genus are reported to have worldwide distribution including in Eurasia, Africa and Northern America. Species: *''Meringosphaera aculeata ''Meringosphaera'' is a genus of protists A protist () is any eukaryotic organism (that is, an organism whose cells contain a cell nucleus) that is not an animal, plant, or fungus. While it is likely that protists share a common ancestor (t ...'' *'' Meringosphaera mediterranea'' *'' Meringosphaera spinosa'' *'' Meringosphaera tenerrima'' References Haptista {{Hacrobia-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Meringosphaera Spinosa
''Meringosphaera'' is a genus of protists belonging to the Centrohelids. The species of this genus are reported to have worldwide distribution including in Eurasia, Africa and Northern America. Species: *''Meringosphaera aculeata'' *''Meringosphaera mediterranea ''Meringosphaera'' is a genus of protists belonging to the Centrohelids. The species of this genus are reported to have worldwide distribution including in Eurasia, Africa and Northern America. Species: *''Meringosphaera aculeata ''Mering ...'' *'' Meringosphaera spinosa'' *'' Meringosphaera tenerrima'' References Haptista {{Hacrobia-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Meringosphaera Tenerrima
''Meringosphaera'' is a genus of protists belonging to the Centrohelids. The species of this genus are reported to have worldwide distribution including in Eurasia, Africa and Northern America. Species: *''Meringosphaera aculeata'' *''Meringosphaera mediterranea'' *''Meringosphaera spinosa ''Meringosphaera'' is a genus of protists belonging to the Centrohelids. The species of this genus are reported to have worldwide distribution including in Eurasia, Africa and Northern America. Species: *''Meringosphaera aculeata'' *''Merin ...'' *'' Meringosphaera tenerrima'' References Haptista {{Hacrobia-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |