Amoeba - Amoeba Amoeba Scientific classification Kingdom: Protista Taxon: Ramicristates Order: Euamoebida Genus: Amoeba The word amoeba is a descriptive term for various single-celled organisms which move about by means of temporary projections, called pseudopods. Sometimes the term is used to mean any such organism, here called amoeboids, but most often it applies only to those with blunt (lobose) or tapering (filose) pseudopods. These are found in sluggish waters, fresh and salt, all over the world, as well as in soils and as parasites. They readily make appearances in putrefying infusions, carried aerially, and are generally able to form protective cysts. When capitalized and italicized, Amoeba refers to a particular genus, of which the best-known species is A. proteus. They are found in freshwater, typically on decaying vegetation.
Immune system - immune system must have the capacity to detect self and some nonself. But since self needs to assimilate some nonself for its survival, it cannot mark itself. It is easier to mark potentially dangerous selves. But if only certain nonselves are marked, how does the body prepare to defend itself from selves not seen? The defense system must have the capacity to transform itself to deal with future dangers. It must also have the capacity to change, since the self itself evolves with time. Structure of the immune system Many organisms have an immune system. This immune system consists of an innate immunity which began in early eukaryotes such as the amoeba and generally consists of a set of mostly hard-wired responses to pathogens and does not change of the lifetime.
Irritation - useful to us, and not useful to it. Pearls do not attract mates for the oyster, they attract them for us. It seems impossible to find an evolutionary advantage for the ability to produce the pearl, thus it can be explained only as a reaction to an irritation. We can also say that an amoeba avoids a pin we poke it with, but not how much it feels this. Irritation is apparently the only universal sense shared by even single-celled creatures. It is postulated that most such beings also feel pain, but this is a projection - empathy. Some philosophers, notably Rene Descartes, denied it entirely, even for such higher mammals as dogs or primates like monkeys - to him, intelligence was a pre-requisite to even the feeling of pain. Mating.
Evolutionary tree - with cells containing a nucleus Pelobionts Entamoebae Retortamonads Diplomonads (e.g. Giardia) Oxymonads Parabasalia Jakobids Heterolobosea (e.g. Naegleria, Acrasis) Euglenozoa (e.g. Euglena, Bodo, Trypanosoma'') Stephanopogon Nucleariids Apusomonads Cercomonads Ellobiopsids Kathablepharids Pseudodendromonads Spironemids Spongomonads Thaumatomonads Chlorarachniophytes Copromyxids Granuloreticulosa (e.g. Foraminiferans) Plasmodiophorids Vampyrellids Ramicristates (most lobose and filose amoebae, plasmodial and cellular slime moulds, e.g. Amoeba, Physarum, Dictyosteliium) Dimorphids Desmothoracids Gymnosphaerids Sticholonche Acantharea Phaeodarea Polycystinea Paramyxea Haplosporidia Alveolates Apicomplexa (e.g. Plasmodium) Ciliates (e.g. Paramecium, Stentor) Dinoflagellates (e.g. Noctiluca) Ebriids Haptophytes Stramenopiles (e.g. golden algae, diatoms, brown algae, water molds) Xenophyophorea Cryptomonads Glaucophytes Red algae (e.g. Polysiphonia) Gymnophrea Centrohelids "Opisthokonts" Kingdom Fungi Choanoflagellates Kingdom Animalia, animals Kingdom Plantae, plants and green algae Table of contents showTocToggle("show","hide") 1 See Also 2.
Dysentery - which is caused by one of several types of Shigella bacteria; and amoebic dysentery, which is caused by the amoeba Entameba histolytica. Shigellosis A patient with shigellosis will often recover without antibiotic treatment. However, treatment by antibiotics is usually recommended because the disease is relatively severe, and it is highly contagious. It can be transmitted by "fomites", for example clothes, doorknobs, toilet seats, etc. The antibiotics norfloxacin, ampicillin and cotrimaxozole may be used. See shigellosis for more information. Amoebic dysentery Amoebic dysentery is transmitted by contaminated water, and is well known as a "travellers dysentery", although it is occasionally seen in Western countries. Liver infection, and subsequent amoebic abcesses can occur. It can be treated with metronidazole or related azole drugs..
1 E-4 m - 0.00394 inches 125 µm -- Dust mite 200 µm -- Typical length of Paramecium caudatum, a ciliate protist 500 µm -- MEMS micro-engine 500 µm -- diameter of a human ovum 500 µm -- Typical length of Amoeba proteus, an amoeboid protist Longer distances External Link Conversion Calculator for Units of LENGTH.
Amoeboid - which are rigid projections around microtubules. Lobose pseudopods are blunt and filose pseudopods are tapering, occasionally branching, but both arise from the same sort of underlying pressure system. The best-known genus is Amoeba, and the name amoeba is often applied to all such forms, less often to amoeboids in general. In these, the outer cytoplasm forms a distinct layer called the ectoplasm, which is generally clear in contrast to the inner cytoplasm or endoplasm, which is generally granular. The main groups of such protists are: Ramicristates - most lobose and filose forms, including most slime mold groups Pelobionts - giant amoebae & kin Entamoebae - mostly parasitic forms, including those which cause amoebic dysentery Heterolobosea - amoeboflagellates, including acrasid slime molds Vampyrellids Nucleariids Chlorarachniophytes Lobose and filose pseudopods also occur in.
Animalcule - peritrichs, called bell animalcules Actinophrys, and other heliozoa, called sun animalcules Amoeba, called proteus animalcules.
The Powerpuff Girls - John Utonium, who was attempting to make the perfect little girl by combining sugar, spice, and everything nice, when he accidentally knocked a glass of Chemical X into the mixture. The girls are sickeningly cute and incredibly powerful. The arch enemy of the Powerpuff Girls is the evil genius monkey Mojo Jojo. Other recurring opponents include The Amoeba Boys, Fuzzy Lumpkins, The Gangrene Gang (who appeared in the original student film), the spoiled little rich girl Princess Morebucks, and the mysterious superpowerful red-skinned and horned cross-dressing devil referred to only by the article "Him". One-time appearances include Femme Fatale and Sedusa; furthermore, a group of unsuccessful bank robbers is often seen suffering the consequences of their actions. Friends and allies of the Girls include the Pokey Oaks kindergarten teacher Miss Keane,.
Cytoskeleton - composed of actin, microtubules, and other proteins. In addition to holding the cell together, the cytoskeleton is crucial in cell motion, especially amoeba-like movement. This article is a stub. You can help Wikipedia by fixing it..
Slime mold - In true slime molds, or Mycetozoa, the feeding stage takes the form of a plasmodium, which is generally a multinucleate amoeba. These can grow up to several square feet in size and are frequently brightly coloured. New plamodia are formed by the fusion of biflagellate gametes, called swarmers. In other groups, called cellular slime molds, sporangia are formed by aggregates of amoebae which come together under adverse conditions to form a colony resembling a slug. It crawls to a better location, and then forms a stalk-like fruiting body that releases spores (which will again exist as single-celled organisms until the next time they come under stress). This life cycle has appeared separately, with some differences in how it occurs, among the Dictyosteliida and Acrasids. It has also appeared among the Myxobacteria,.
Swing rueda (dance move) - Rueda (From Salsa Rueda) Everything, except the amoeba is 8-count based. Moves Basic Swing Out: Normal swing out, stay with partner Swing Out Variations: move to next partner (inner turn, outer turn, texas tommy, stop texas) Charlestons: Stay with partner Open Break: Open Break from closed to swing out Coca Cola: Stop Break: this preps for an amoeba. The guys switch feet. Girls In: Guys In: Trade: Guys and Girls trade positions Amoeba: Dame: move to next partner Double Dame: move 2 partners over. Girls clap. See Also Lindy hop Dance move.
Ramicristates - name, and appear to share a common origin. All undergo open mitosis without centrioles, but most characters show some variation within the group. The most famous member is Amoeba proteus, which is often studied as a representative unicellular organism. Many members of this group produce shells. These may be relatively simple secreted shells, as in Arcella, shells covered in sand grains and other collected detritus, as in Difflugia, or shells covered in internally formed siliceous scales, as in Euglypha. Some are fairly structured, though not nearly as ornate as those found in some other amoeboid groups. The true slime molds, or Mycetozoa, belong here. These grow to form a multinucleate plasmodium, which in some may reach several square feet in size. Eventually this produces one or more fruiting bodies or sporangia,.
Richard's Play By Email Server - A variant with 8 new cards, Jesters and Wizards. Breakthrough: An amazingly simple concept of a boardgame in which 2 players try to get past each other. Cathedral: A polyomino placing game. Checkers: One of the oldest games on the planet. Chess: Possibly the most famous strategy game of all time. Amoeba: Played on a 9x8 board with squares that slide around. Avalanche Chess: Ordinary chess, except after each move you must push a pawn one square forward if you can. Big Outer Chess: A large chess variant where pieces in the middle of the board become less powerful. Capablanca: A chess variant taking place on a 10x8 board with the introduction of the Chancellor (combines Rook and Knight) and Archbishop (combines Bishop and Knight) CooperYoung: A modern game of bluff..
Robert Rich (musician) - (1989) Strata (with Steve Roach) Hearts of Space, (1990) Gaudi" Hearts of Space, (1991) Soma (with Steve Roach) Hearts of Space, (1992) Eye Catching by Amoeba, (1993) Propagation Hearts of Space (1994) Yearning (with Lisa Moskow) Hearts of Space, (1995) Stalker (with Brian Lustmord) Hearts of Space, (1995) Night Sky Replies Amplexus, (1995) A Troubled Resting Place Hearts of Space, (1995) Fissures (with Stefano Musso/Alio Die) Hearts of Space, (1997) Watchful by Amoeba, Lektronic Soundscapes, (1997) Seven Veils Hearts of Space, (1998) Below Zero Solielmoon, (1998) Humidity (live) (3 discs) Hypnos, (1999) Pivot by Amoeba with Rick Davies, (2000) Bestiary Release/Relapse Records (2001) Outpost (with Ian Boddy) DiN, (2002) Temple of the Invisible Soundscape (2003) External Link http://www.robertrich.com/index.html.
Pelobiont - mitochondria and dictyosomes. The most notable member is Pelomyxa pelustris, called the giant amoeba because of its size: usually 500-800 μm, but occasionally passing 3 mm in length. Several other species of Pelomyxa have been described but they may be synonyms. Pelomyxa are found in the mud at the bottom of freshwater streams. A moving cell is cylindrical in shape, with a single hemispherical pseudopod at the front and a semipermanent bulb called the uroid at the back, which is usually covered in thin non-motile extensions. The cytoplasm streams forward through the center of the organism and back along the outside, allowing the creature to slide along the substratum. There are anywhere from two to several hundred nuclei, which undergo mitosis independently of cell division. Pelomyxa are not picky eaters, and.
Pfiesteria piscicida - living cycle is extremely complex: scientists have found at least 24 different stages, spanning from cyst to several amoeba-like forms. The organism apparently moves through these different stages as environmental conditions require. Pfiesteria produces a powerful toxin, used to kill fishes, even relatively large ones. The toxin can also be carried in the air, as experimenters learned when cultivating the organism in laboratory..
Protist - few are important parasites. Traditionally protists have been divided into: Plant-like forms that have chloroplasts, the algae; Fungus-like forms, the slime molds and water molds; Animal-like forms, the protozoa, generally divided on the basis of morphology and locomotion into: Flagellates (e.g. Euglena) Amoeboids (e.g. Amoeba) Apicomplexa Ciliates (e.g. Paramecium) In early classifications the Protozoa were considered a phylum of animals, and the algae and slime molds were placed among several divisions of plants. Many forms were classified under both kingdoms and researched by zoologists and botanists alike. Eventually the kingdom Protista was created to house these forms, with the classes of protozoa (corresponding roughly to the above) being promoted to phyla. Except for the ciliates and Oomycota, however, all the above groups are polyphyletic and frequently overlapping. Further, the protists themselves.
Python programming language - created by Guido van Rossum, originally as a scripting language for Amoeba OS capable of making system calls. Python is often compared to Tcl, Perl, Scheme, Java and Ruby. Python is currently (December 2003) at version 2.3.3. Table of contents showTocToggle("show","hide") 1 Philosophy 2 Data types and structures 2.1 Collection types 2.2 Object system 3 Syntax 3.3 Syntactical significance of whitespace 3.4 Functional programming 3.4.1 Lambda 3.4.2 Generators 3.5 Logical operators x">4 5 and 3 are true, one would write "x 4.6 Object-oriented programming 4.7 Exception handling 5 Standard library 6 Other features 7 Neologisms 8 Platforms 9 Miscellany 10 External Links Philosophy Python is a multi-paradigm language, like Perl and unlike Smalltalk or Haskell. This means that, rather than forcing coders to adopt one particular style of coding, it permits.
Master of Orion - diplomatic and martial interests have to be managed and customized in steady competition with up to five computer players (who can show uncanny brains at times). Players get to design their own space fleet from the ground up, which accounts for most of the fun. There are many random events like rebellion, piracy, humonguous space amoeba and diplomatic blunders. The conquest of the most powerful system "Orion" usually means victory. Master of Orion 2 Master of Orion 3 The long anticipated sequel to MOO2, this installment further expands the background story and adds some new features. While highly anticipated by fans of the series, and much lauded by the usual gaming rags, the game was not as big a hit among loyal fans as the previous versions. This is primarily due.
