examples of animal like protists
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Answers:A common example of a protist is the brown algae. it is multicellular and can be used for gunpowder. A harmful protist would be the Parabasalida, and apicomplexa.
Answers:Kingdom Protista The kingdom Protista is unique among the six classification kingdoms. If one were to look for a common bond linking all the organisms of this kingdom together it would be difficult to do so. Most of the organisms are unicellular, though many find comfort in grouping together forming colonies. Some are autotrophic, while others are heterotrophic. The main reason these organisms are grouped into the Protista is that they cannot be satisfactorily placed in any of the other kingdoms. In this section we are going to examine the protists as members of two groups: heterotrophic protists and autotrophic protists. Heterotrophic Protists: Protozoa are generally motile, unicellular or syncytial, wall-less heterotrophic protists. They may be free living predators or scavengers, ingesting other organisms or bits of organic matter, or parasites or mutualistic symbionts. members of the first two phyla ( plus Phylum Actinopoda) were formally placed into a single phylum Sarcodina, based on their common feature: pseudopods ( false feet ). Phylum Rhizopoda : Amoebas Phylum Rhizopoda contains about 200 species. 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. These organisms are found worldwide, in soil, in salt and fresh water, and in the bodies of animals. The species Entamoeba histolytica, can cause a serious disease in humans if it finds its way into the intestine. These organisms are usually naked, though some have a hard shell called a test. They do not contain cilia or flagella. They never undergo meiosis and do not produce mitotic spindles during cell division. Phylum Granuloreticulosa: 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. They contain numerous nuclei and are mostly marine. England's White Cliffs of Dover are made of deposits of these organisms dating from ancient times. Reproduction varies from none to a complex life cycle containing mitosis and meiosis. 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. These organisms live in the soil eating as they go. When their food supply becomes restricted they send out chemical signals attracting others of their species and for a large pseudoplasmodium. This may crawl around for awhile and then develop into fruiting bodies. Phylum Myxomycota: 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. When conditions become too dry, the plasmodium forms a fruiting body with cell walls. Spores are produced by meiosis. Germinating spores release haploid amoebas, which may develop flagella. Two compatible amoeba fuse and form a plasmodium with a diploid nucleus. The diploid nucleus divides but the cytoplasm does not. Phylum Zoomastigina: 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. Termites cannot live without a certain zooflagellete in their intestine producing cellulose digesting enzymes. Trypanosomes, which live in the blood of vertebrates causing sleeping sickness and Chagas' disease. Leishmaniasis is transmitted by sand flies in Africa, causing ulcers on the skin and internal organs. If untreated, it is fatal within two years. Phylum Apicomplexa All apicomplexans are parasites. In typical parasite fashion, most have complicated life cycles, often with two different hosts. The phylum name is named for the "apical complex" found on the end of the motile stage used to enter the host. Human malaria is caused by four species of Plasmodium. Phylum Ciliophora: Ciliates All protists with cilia belong to one highly successful linage, placed in phylum Ciliophora. They have rows of cilia either all over the body or in specialized areas of the cell surface. Ciliates have a very complex organization. The cell covering, the pellicle, consists of two layers of membrane sandwiching a layer of vesicles between them. The outermost layer of cytoplasm, the cortex, contains a network of protein fibers connecting the basal bodies of the cilia. It may also contain many trichocysts, barbed or poisoned threadlike organelles that can be discharged to the outside. Most ciliates prey on bacteria, small animals, or other protists. A unique feature of all ciliates is the presence of two nuclei. The macronucleus controls the cells growth and contains hundreds of copies of DNA. The micronucleus is a small diploid nucleus used during the process of conjugation when genetic material between paramecia is swapped. Phylum Oomycota: Water Molds The Oomycota resemble fungi in having bodies made up of threadlike filaments called hyphae and in reproducing and dispersing by means of spores. Oomycotes live as saprobes and parasites. They feed by growing hyphae into a food source, releasing digestive enzymes, and absorbing the resulting molecules. The vegetative hyphae are coenocytic, with diploid nuclei and cellulose walls. They form motile asexual spores, which swim through water by means of two unlike flagella, one hairy and forward pointing, the other smooth and trailing. The parasitic oomycote Phytophtora infestans caused the Irish potato famine in the 1800's where millions of people died and many emigrated to the United States. Autotrophic Protists: Algae The term algae embraces all photosynthetic protists. It refers to an aquatic, photosynthetic way of life, not an evolutionary kinship. Most algae live in water, but some are terrestrial. Most algae live near the surface of the water producing 30 to 50 percent of the earth's oxygen. Algae are classified on the basis of conservative characteristics such as the type of cell wall, flagella, photosynthetic pigments, and the form in which food is stored. Phylum Dinoflagellata (Pyrrophyta) Dinoflagellates are unicellular or colonial organisms with two flagella: one attached centrally and the other at the rear of the organism. About half the species contain a cellulose "armor" just under the plasma membrane. Half the species are photosynthetic containing chlorophylls a and c and various carotenoids, and store their food in the form of oils and starch. Many dinoflagellates are colorless and live as heterotrophs and parasites. Some produce nerve poisons toxic to vertebrates. "Red Tide" is caused by a bloom of red pigmented dinoflagellates. Phylum Euglenida Most members of this group live in fresh water, being especially abundant in polluted habitats. Many euglenoids contain two flagella and contain a hard pellicle made of protein just under the plasma membrane. Their chloroplasts contain chlorophyll a and b and carotenoids. Many contain a red eyespot, which is thought to be used as a photoreceptor. Euglenoids reproduce asexually by dividing lengthwise into two. They do not reproduce sexually. Phylum Bacillariophyta: Diatoms Diatoms are probably the most abundant aquatic eukaryotes in number of individuals and species. They live singly or in simple filaments or colonies, they occur in either type of aquatic environment. They reproduce sexually and are basically non motile. Most unicellular algae are haploid but diatoms are diploid. They contain chlorophyll a and c and the accessory pigment fucoxanthin, a carotenoid that give them a yellow-brown color. They store food as oil and the polysaccharide chrysolaminarin. The most distinctive feature of diatoms is the intricately patterned c
Answers:In response to the previous answer, E. coli is neither an animal nor a protist. It is a bacteria. Animal like protists tend to be "carnivorous" on other small microbes. For instance, paramecia are known to prey on Euglena. In turn, the common amoeba prey on paramecia. There are a wide variety of "plant-like" protists. These typically are any microbe that is photosynthetic and eukaryotic (having a true nucleus). Euglena, as mentioned previously, is a good example. There are many, many others though. Kelp, for instance, is a colony of photosynthetic protists. Fungi-like protists are trickier because scientists often have difficulties deciding which kingdom they belong too. Two of the more commonly cited examples are the slime moulds (myxomycota) which are big slimey things that move around (they look a little like a pile of sick...sometimes they pop up in your yard). And cellular slime moulds, of the class acrasiomycota. Cellular slime moulds are very typical of these fungi/protists organisms. They have a two staged in their life cycle...they exist as amoeba for some period of time before they stop, send up a stalk and create spores (this is a fairly typical fungal activity). Other classes of fungi that have protist like staged in their development include the chytridiomycota, hypochytridiomycota, and oomycota. Archaebacteria are really interesting creatures, unfortunately I don't know what exactly you mean by "types." If you just want examples, then Thermus aquaticus, Deinococcus radiodurans, and Pyrococcus furiosus works. Often these microbes are classified as extremophiles and named for the environments they thrive in. For instance, thermophiles are capable of living (indeed, flourishing) at temperatures near the boiling point of water. Halophiles can withstand very, very high salt concentrations. Psychrophiles can withstand cold. I hope this helps, some of this information is a little obscure. I'm sure Wikipedia has some decent articles - esp. on archaea. Good luck!
Answers:The characteristics you gove your protist will depend a bit on what environment it is designed for. Aquatic protists like Paramecium are wildly different from the parasitic protists like the malaria parasite Plasmodium falciparum. If you are making an aquatic protist: I would suggest a cell wall for rigidity. A number of protists have cell walls such as the diatoms or the water moulds. Alternatively if you want your protist to be ameboid I wouldn't give it a cell wall. Secondly I would give it a contractile vacuole if it is going to live in fresh water, since the inside of your protist will contain more dissolved materials than the outside water water will tend to move into the protozoa by osmosis. Contractile vacuoles remove this excess water.