They include single celled organisms with a nucleus, such as amoebas, paramecium, and euglena. If they can move around, they are called protozoa. Some have the ability to photosynthesize, some are heterotrophic (eat other organisms) and some are parasitic (like the one that cause malaria).
Also don't forget, this kingdom also include multicellular organisms such as seaweed and slime-molds. What makes them different from plants and fungi is that they don't have differentiated tissues (all the cells that make up the organisms are more or less the same)
2007-04-30 08:23:55
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answer #1
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answered by Ms. K. 3
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Organisms In The Protist Kingdom
2016-11-02 23:14:56
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answer #2
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answered by ? 4
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Originally, there were considered to be 2 kingdoms, Plantae and Animalia. In 1969, Robert Whittaker of Cornell argued for a 5 kingdom system. Monera, Protista, Fungi, Plantae and Animalia. Protista was not clearly defined. It consisted of all eukaryotes that did not fit the definitions of plants, animals or fungi. Most were unicellular, but some multicellular organisms, like seaweeds were included, because their relationships to unicellular protists.
However, based on cladistic analysis, biologists have now adopted a three domain system. The domains Bacteria, Archaea and Eukarya are essentially superkingdoms. The kingdom formerly called Protista has crumbled because it is paraphyletic, which means that some protists are more closely related to Fungi, Plantae or Animalia than they are to other protists. Debate continues about whether some single-cellewd protists should be transferred to Plantae, Fungi or Animalia.
The protists include Diplomonadida, Parabasala, Euglenozoa, Alveolata (including the Dinoflagellates and Ciliata), Stramenopila (including the Diatoms), Cercozoa (including Foraminiferans), and Amoebozoa.
2007-04-30 08:00:36
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answer #3
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answered by kt 7
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About the only definition of the protists that is
anywhere near satisfactory is "unicellular
eukaryotes," and even that is not entirely accurate. The so-called kingdom protista is
nothing but a ragbag of different kinds of
mostly unicellular organisms. Virtually everyone
agrees that some of them are like plants, some
like animals and some like fungi. They should
be placed in the Kingdoms they resemble, and
the heterogeneous group protista abandoned.
It was never more than a way of dodging the
need to make difficult distinctions.
2007-04-30 07:50:30
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answer #4
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answered by Anonymous
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Protozoa is: amoeba, paramecium and other one cell organisms
2007-04-30 07:57:05
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answer #5
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answered by Ke Xu Long 4
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amebas, parameciums, euglenas, hmm i used to know most of them but these are the only three i can think of right now
2007-04-30 07:47:21
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answer #6
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answered by Tim C 5
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amoebas, paramecia, diatoms, red algae, brown algae(seaweeds), green algae(spirogyra, volvox), water molds, slime molds, trtpanosoma, plasmodium, dinoflagellates, euglena
hope tht helps you!!!
2007-04-30 08:19:59
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answer #7
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answered by lovin' it 6
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diatoms, ameboa, paramecium, flagellates,trichomonas
2007-04-30 07:59:44
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answer #8
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answered by Anonymous
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amoeba
2007-04-30 07:57:32
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answer #9
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answered by Mark G 1
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