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protista    
原生生物

原生生物

Protista
n 1: eukaryotic one-celled living organisms distinct from
multicellular plants and animals: protozoa, slime molds,
and eukaryotic algae [synonym: {Protista}, {division Protista}]


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  • Protista - Encyclopedia. com
    Protista A kingdom (superkingdom Eukarya) comprising single-celled eukaryotes that are neither animals (developing from a blastula) nor plants (developing from an embryo) Animal-like members include naked and shelled amoebas, foraminiferans, zooflagellates, and ciliates; plant-like members include dinoflagellates, diatoms, and algae
  • Protists - Encyclopedia. com
    Protists The kingdom Protista is the most diverse of all the five Eukaryotic kingdoms There are more than 200,000 known species of protists with many more yet to be discovered Protists can be found in countless colors, sizes, and shapes They inhabit just about any area where water is found some or all of the time
  • Green Algae - Encyclopedia. com
    Chlorophyta are microorganisms that are grouped in the kingdom called Protista The microbes are plant-like, in that they are able to manufacture energy from sunlight The microbes are also commonly known as green algae
  • Protist - Encyclopedia. com
    In a 5-kingdom system of classification protists were grouped as a kingdom, Protista; later some multicellular organisms with protist affinities but previously classed as fungi or plants were transferred into the Protista and the name of the kingdom was changed to Protoctista, although the new name is little used
  • Phaeophyta - Encyclopedia. com
    Phaeophyta (fēŏf´ətə), phylum (division) of the kingdom Protista [1] consisting of those organisms commonly called brown algae Many of the world's familiar seaweeds [2] are members of Phaeophyta There are approximately 1,500 species
  • Slime Molds - Encyclopedia. com
    Slime Molds There are two major unrelated phyla of slime molds The Myxomycota are the true (plasmoidal) slime molds, and the Dictyosteliomycota are the cellular slime molds
  • Pyrrophyta - Encyclopedia. com
    Pyrrophyta Approximately 2000 species of Pyrrophyta (from the Greek pyrrhos, meaning flames, and phyton, meaning plant) are known at present
  • Protozoa - Encyclopedia. com
    Protozoa are a varied group of single-celled animal-like organisms belonging to the kingdom Protista More than 50,000 different types of protozoa have been described Their name comes from two Greek words, protos, or "first," and zo ö n, or "animal " The vast majority of protozoa are microscopic, many measuring less than 1 200 millimeter
  • Theories of the Origin and Early Evolution of Life
    Protista consists mostly of single-celled eukaryotic organisms with some colonial forms included The remaining three kingdoms, plant, fungi, and animal, are all multicellular eukaryotes Such a system appears to reflect evolution since bacteria are the simplest organisms followed by protists





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