Does a euglena have any specialized organelles?
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chloroplasts, flagella, contractile vacuoles and the eye spot for starters.
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Mitochondria are found in nearly all EUKARYOTIC cells, usually several or many per cell.\n\nAnything not considered a eukaryote does not in turn have organelles therefore it doesn't have mitochondria.\n\nDan is correct viruses and prokaryotes don't have them.....
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There are many different kinds of cells. Eukaryotic (mostly all animal, fungi, and plant cells), Prokaryotic (bacteria), and then there are specialized cells in most organisms. I.E. storage cells, bacteria-fighting cells, hormone producing and recieving cells. I am not sure that there is a set number of different kinds. However, the Prokaryotic and Eukaryotic division is the beginning of differentiation among all cells. It is used to help differentiate different kingdoms of organisms.
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procaryotic and eucaryotic
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yes. DNA is also found in mitochondria and chloroplasts of eukaryotes'.
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A flagellum (plural, flagella) is a whip-like organelle that many unicellular organisms, and some multicellular ones, use to move about. They may also be involved in other processes. The name actually covers three different structures, found in each of the three domains. Bacterial flagella are helical filaments that rotate like screws. Archaeal flagella are superficially similar, but are different in many details and considered non-homologous. Eukaryotic flagella - those of animal, plant, and protist cells - are complex cellular projections that lash back and forth. Sometimes the last are called cilia or undulipodia to emphasize their distinctiveness.
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In general, organisms with less complexity, are less likely to have homeoboxes\n\nHomeoboxes seem to be reserved for higher eukaryotic cells (like human cells) that require specialized cells which will coordinate complex tasks in conjunction with other specialized cells (at least that's my simplistic viewpoint).\n\nE.coli, for example, does not contain homeoboxes because it is not dependent so much on its sister cells. \n\nI had fun thinking about the answer to your question.  Don't forget to pass on the good karma.
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The origin of the eukaryotic cell was a milestone in the evolution of life, since they include all complex cells and multi-cellular organisms. The timing of this series of events is hard to determine; Knoll (1992) suggests they developed approximately 1.6 - 2.1 billion years ago. Fossils that are clearly related to modern groups start appearing around 800 million years ago.\n\nrRNA trees constructed during the 1980s and 1990s left most eukaryotes in an unresolved "crown" group (not technically a true crown), which was usually divided by the form of the mitochondrial cristae. The few groups that lack mitochondria branched separately and so the absence was believed to be primitive, but this is now considered an artifact of long branch attraction and they are known to have lost them secondarily.\n\nTrees based on actin and other genes have painted a different and more complete picture. Most eukaryotes are now included in several supergroups:\n\nOpisthokonts Animals, fungi, choanoflagellates, etc. \nAmoebozoa Most lobose amoebae and slime moulds \nRhizaria Various amoeboid protozoa \nExcavates Various flagellate protozoa \nArchaeplastida Land plants, green and red algae \nHeterokonts Brown algae, diatoms, water molds, etc. \nAlveolates Ciliates, Apicomplexa, dinoflagellates, etc. \n\nThe heterokonts and alveolates may be part of a larger group that is ancestrally photosynthetic, called the chromalveolates, but this remains contentious. Otherwise the relationships between the different supergroups are mostly uncertain, and in particular there is dispute about where the root of the evolutionary tree belongs, and as a result what the earliest eukaryotes were like. A few small protist groups have not been related to any of the major supergroups, notably the centrohelids, apusozoans, and ebriids.\n\nEukaryotes are closely related to archaea, at least in terms of nuclear DNA and genetic machinery. In other respects, such as membrane composition, they are similar to eubacteria. Three main explanations for this have been proposed:\n\nEukaryotes resulted from the complete fusion of two or more cells, the cytoplasm forming from a eubacterium and the nucleus from an archaeon (alternatively a virus). \nEukaryotes developed from Archaea, and acquired their eubacterial characteristics from the proto-mitochondrion. \nEukaryotes and Archaea developed separately from a modified eubacterium. \nThe origin of the endomembrane system and mitochondria are also disputed. The phagotrophic hypothesis states the membranes originated with the development of endocytosis and later specialized; mitochondria were acquired by ingestion, like plastids. The syntrophic hypothesis states that the proto-eukaryote relied on the proto-mitochondrion for food, and so ultimately grew to surround it; the membranes originate later, in part thanks to mitochondrial genes (the hydrogen hypothesis is one particular version).
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All multicellular organisms are eukaryotes, and need their mitochondria (and chloroplasts, in some cases) to live. Mitochondria and chloroplasts used to be free-living prokaryotes.
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The euglena moves, which is something more commonly associated with animals. It has a flagellum. It also has an eyespot.
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The main component of protoplasm is....  Water!  That's pretty much it.  Inside the protoplasm, you've got all sorts of stuff swimming around -- organelles, chromosomes, proteans, aminos -- but the medium it's all floating in is really just H2O.
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one celled organism are organism which consists of only one cell.examples are Amoeba,euglena and paramecium while  many-celled organism or muticellular organisms consists of two or more cells.Examples are man,bird,hydra,flowering plants,volvox ,hydra and fish
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False. All creatures, from worms to humans, have specialized cells.
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Some algae are motile. Single-celled algae often have flagellae and move in a spiralling manner. Others do not have flagellae but secrete a sticky substance which attach them to the substrate, enabling them to glide along leaving a trail of slime behind.\n\nSome Diatoms (pythoplankton) can also move on their own thanks to their flagellae.  Then there's the rhodophyta and the cyanobacteria, which are not exactly plants but will also enlighten your way to finding what you need.\n\nOtherwise, plant cells are not moile.
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1. Monera (1 cell without nucleus): Eubacteria and Archaebacteria.\n\n2. Protista (1 cell with nucleus, several cells aggregated): Protozoans and Algae.\n\n3. Fungi (multicellular): Fungi (haploid + diploid cycles, both about equal)\n\n4. Plantae (multi): diploid life cycle with short haploid, mostly autotrophic.\n\n5. Animalia (multi): diploid life cycle, no cell walls.
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an organism composed of one or more cells containing visibly evident nuclei and organelles
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euglena are alga which use photosynthesis to produce their own  energy source, primarily, glucose.  cyanobacteria must occupy a biological host in order to survive and multiply.