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protozoa    音标拼音: [pr,otəz'oə]
n. 原生动物类

原生动物类

Protozoa
n 1: in some classifications considered a superphylum or a
subkingdom; comprises flagellates; ciliates; sporozoans;
amoebas; foraminifers [synonym: {Protozoa}, {phylum Protozoa}]

Protozoon \Pro`to*zo"["o]n\ (-[o^]n), n.; pl. {Protozoa}. [NL.]
(Zool.)
(a) One of the Protozoa.
(b) A single zooid of a compound protozoan.
[1913 Webster]


Protozoa \Pro`to*zo"a\, n. pl. [NL., fr. Gr. ? first zo^,on an
animal.] (Zool.)
The lowest of the grand divisions of the animal kingdom.
[1913 Webster]

Note: The entire animal consists of a single cell which is
variously modified; but in many species a number of
these simple zooids are united together so as to form a
compound body or organism, as in the Foraminifera and
Vorticell[ae]. The reproduction takes place by fission,
or by the breaking up of the contents of the body after
encystment, each portion becoming a distinct animal, or
in other ways, but never by true eggs. The principal
divisions are Rhizopoda, Gregarin[ae], and Infusoria.
See also {Foraminifera}, {Heliozoa}, {Protoplasta},
{Radiolaria}, {Flagellata}, {Ciliata}.
[1913 Webster]


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  • Protozoa - Wikipedia
    Protozoa (sing : protozoan or protozoon; alternative plural: protozoans) are a polyphyletic group of single-celled eukaryotes, either free-living or parasitic, that feed on organic matter such as other microorganisms or organic debris [1][2] Historically, protozoans were regarded as "one-celled animals"
  • Protozoan | Definition, Parasites, Diseases, Characteristics, Size . . .
    protozoan, organism, usually single-celled and heterotrophic (using organic carbon as a source of energy), belonging to any of the major lineages of protists and, like most protists, typically microscopic All protozoans are eukaryotes and therefore possess a “true,” or membrane-bound, nucleus
  • Protozoa - Definition, Examples, Characteristics, and Classification
    Protozoa are unicellular eukaryotic microorganisms having a membrane-bound nucleus and other organelles within their cells Despite their small size, they are incredibly diverse and exist in various aquatic and terrestrial environments worldwide
  • Protozoa and the Illnesses They Cause - Verywell Health
    Protozoa are tiny, single-celled organisms that can cause diseases like malaria, giardia, and toxoplasmosis Protozoan infections can be identified through blood, stool tests, or biopsies
  • What are Protozoa? - Microbiology Society
    What are Protozoa? Protozoa are micro-organisms which have a membrane bound nucleus that can't be categorised as a fungi, animal or plant Most protozoa are free living, but some are parasitic They are heterotrophs, meaning that they eat other plants or animals for energy and nutrients
  • What Is a Protozoa? Characteristics and Examples
    Protozoa are single-celled organisms found nearly everywhere on Earth Learn what makes them unique, how they live, and which ones can cause human disease
  • Protozoa - Definition, Classification, Characteristics, Structure . . .
    Protozoa Definition, Classification, Characteristics, Structure, Diseases, Protozoa Examples types of Protozoa Protozoan Disease
  • 9: Protozoa - Biology LibreTexts
    Protozoa are unicellular eukaryotic microorganisms lacking a cell wall and belonging to the Kingdom Protista Protozoa reproduce asexually by fission, schizogony, or budding
  • Protozoa - New World Encyclopedia
    Protozoa (in Greek proto = first and zoa = animals) is a diverse group of single- celled, microscopic or near-microscopic eukaryotes (organisms whose cells have nuclei) that commonly show characteristics usually associated with animals, most notably mobility and heterotrophy
  • Protozoa - ScienceDaily
    Protozoa are single-celled eukaryotes (organisms whose cells have nuclei) that commonly show characteristics usually associated with animals, most notably mobility and heterotrophy





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