The Amoeba proteus, commonly called the Ameba is one of the most thoroughly studied protists. This formless group of organisms use pseudopodia for movement and feeding.
Foraminifera Foraminiferans have slender, granular pseudopods used to capture food than for movement. They have a shell (test) made of calcium carbonate or of sand grains cemented by mucus. The pseudopods poke out through holes in the test where they may touch and form a netlike structure to capture food.Phylum Acrasiomycota: Cellular Slime Molds Members of this phylum combine characteristics of fungi and the amoeba. Since the fungus-like features are readily observable they were first studied by mycologists. During good times they move gathering food like an amoeba, but when the going gets rough they settle down and take on a fungus-like existence and produce fruiting bodies.
Plasmodial Slime Molds The feeding stage is a plasmodium which moves around in soil, wood, dung, or decayed vegetation, engulfing bacteria or particles of food. Zooflagellates The organisms in this group contain whip-like flagella. The nutritional habits of these organisms range from free-living, freshwater or marine, and symbionts or parasitic.
Ciliates have rows of cilia either all over the body or in specialized areas of the cell surface.
2007-09-01 09:33:17
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answer #1
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answered by ATP-Man 7
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Rhizopoda are a grouping of amoeboids, and their method of locomotion is pseudopodia, or a temporary projection of the cell's own material. Foraminifera, or forams, are also amoeboids, but their pseudopodia are "reticulating," meaning that they form a moving network.
Ciliophora is actually the phylum that is synonymous with ciliates, being the organisms that move by means of cilia. Cilia are hairlike organelles that can cause locomotion by undulating.
Myxogastrida are the plasmodial slime molds, and their life cycle is a bit complicated. At certain times, they form a mass that moves via pseudopodia, but at other times the form of the cells is flagellated, meaning that it moves via the lashing of a flagellum, a whiplike organelle.
2007-09-04 16:26:38
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answer #2
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answered by DavidK93 7
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Racism and the media is a bit of a shambles I have to say. It's the current state of the world that people are so easily offended and sue people left right and centre for things they don't like, so to protect themselves the press use a term so broad that it encompasses everything. It's a politically correct way of trying to please everyone, which in the end just makes it look like they don't have their facts right or don't actually know much about the story they are reporting. I'm with you, people should be referred to as what they are. As a white Englishman it could be viewed as racist when I say this, but I think it should as clear cut case, as you say, call a spade a spade! If they are English, call them English, if they are from Pakistan call them a Pakistani, if they are from China, call them Chinese. If I had to really commit to this answer I would say that using the term "Asian" so broadly is in fact as racist as you can get since it is generalising everyone from that continent.
2016-05-18 21:27:12
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answer #3
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answered by ester 3
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