Protozoa

Protozoa (in Greek proto = first and zoa = animal) are single-celled eukaryotes (organisms whose cells have nuclei) that show some characteristics usually associated with animals, most notably mobility and heterotrophy.
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Protozoa
[Gr. protos - first, primary; Gr. zoon - animal]. The Subkingdom of the Kingdom Animalia, in older classification systems, ...
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Protozoa (in Greek protos = first and zoon = animal) are single-celled creatures with nuclei that show some characteristics usually associated with animals, most notably mobility and heterotrophy.
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protozoa - tiny animals; most feed on microorganisms
yeast - eukaryotic organisms larger than most bacteria, commonly divides by budding ...
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Protozoan: A microscopic, single-celled organism that is largely aquatic and includes many parasitic forms.
Pupa, Pupae (pl.): The nonfeeding stage between the larva and adult in insects with complete metamorphosis.
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protozoan pl. protozoa
A protist that lives primarily by ingesting food, an animal-like mode of nutrition.
provirus ...
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protozoan Unicellular eukaryotic heterotrophs.
protozoans Animal-like protists; the various groups of unicellular and eukaryotic organisms that are mostly heterotrophic.
protozoologist A person who studies protozoa.
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the protozoans that cause malaria
the worms that cause schistosomiasis and filariasis
the virus that causes hepatitis B.
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Amoeboid Protozoa Use Pseudopods for Movement
Amoeba and Pelomyxa move by extensions of their cytoplasm known as pseudopodia.
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Foraminifera. Protozoan group, individuals of which usually secrete a calcareous test; both planktonic and benthic representatives
Founder principle. A small colonizing population is genetically unrepresentative of the source of population ...
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Members of the protozoal species Plasmodium, which cause malaria, have evolved a successful relationship with their
Figure 5. The life cycle of the malaria parasite ...
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fever produced by a protozoan (class Sporozoa); it was formerly thought to be caused by "bad" air
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby
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Since then, our knowledge about a superfamily of similar proteins present in mammals, birds, fish, insects, plants and some protozoa has expanded, and their properties as potent peptidase inhibitors have been firmly established.
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These scenarios represent only a few of the possible ways that microbes-the invisible bacteria, archaea, protozoa, and fungi that inhabit our environment, our bodies, our food and water, and even the air we breathe-can be harnessed to serve humankind.
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Not only does this definition exclude prokaryotes, protozoa, and fungi, but it specifically includes a term "gradual process" which should not be part of the definition.
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Ciliate protozoa also have some variation in the genetic code: UAG and often UAA code for Glutamine (a variant also found in some green algae), or UGA codes for Cysteine.
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Protista: a kingdom that includes protozoa, one-celled algae, and slime molds.
protocells: the first cells.
protons: positively charged particles within the nucleus of an atom.
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Freshwater organisms live in a hypotonic solution and have a tendency to gain water. The contractile vacuole in freshwater protozoans removes water that enters the cell.
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The union of two bacterial cells, during which chromosomal material is transferred from the donor to the recipient cell. Conjugation in Protozoa is a two-way process, genetic material is passed between each conjugant.
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