10 Truly Weird Organisms
Thanks for watching.....<br />1) Sea Pig<br />2) Yeti Crab<br />3) Viperfish<br />4) Japanese Spider Crab<br />5) Giant Isopod<br />6) Chinese giant salamander<br />7) Olm<br />8) Giant Grenadier<br />9) Giant oarfish<br />10) Angora rabbit<br /><br />Source:http:<br />//listverse.com/2012/02/11/10-truly-eccentric-organisms/?utm_source=more&utm_medium=link&utm_campaign=direct<br /><br /><br />In biology, an organism is any contiguous living system, such as a vertebrate, insect, plant or bacterium. All known types of organism are capable of some degree of response to stimuli, reproduction, growth and development and self-regulation (homeostasis).<br /><br />An organism may be either unicellular (a single cell) or, as in the case of humans, comprise many trillions of cells grouped into specialized tissues and organs. The term multicellular (many cells) describes any organism made up of more than one cell.<br /><br />An organism may be either a prokaryote or a eukaryote. Prokaryotes are represented by two separate domains, the Bacteria and Archaea. Eukaryotic organisms are characterized by the presence of a membrane-bound cell nucleus and contain additional membrane-bound compartments called organelles(such as mitochondria in animals and plants and plastids in plants and algae, all generally considered to be derived from endosymbiotic bacteria). Fungi, animals and plants are examples of kingdoms of organisms within the eukaryotes.<br /><br />In 2002, Thomas Cavalier-Smith proposed a clade, Neomura, which groups together the Archaea and Eukarya. Neomura is thought to have evolved from Bacteria, more specifically from Actinobacteria. See the article: Branching order of bacterial phyla (Cavalier-Smith, 2002).<br /><br />The term "organism" (from Greek ὀργανισμός, organismos, from ὄργανον, organon, i.e. "instrument, implement, tool, organ of sense or apprehension") first appeared in the English language in 1703 and took on its current definition by 1834 (Oxford English Dictionary). It is directly related to the term "organization". There is a long tradition of defining organisms as self-organizing beings.<br /><br />There has been a great deal of recent controversy about the best way to define the organism and indeed about whether or not such a definition is necessary. Several contributions are responses to the suggestion that the category of "organism" may well not be adequate in biology.<br /><br />The word organism may broadly be defined as an assembly of molecules functioning as a more or less stable whole that exhibits the properties of life. However, many sources propose definitions that exclude viruses and theoretically possible man-made non-organic life forms. Viruses are dependent on the biochemical machinery of a host cell for reproduction.<br /><br />Chambers Online Reference provides a broad definition: "any living structure, such as a plant, animal, fungus or bacterium, capable of growth and reproduction".<br /><br />In multicellular terms, "organism" usually describes the whole hierarchical assemblage of systems (for example circulatory, digestive, or reproductive) themselves collections of organs; these are, in turn, collections of tissues, which are themselves made of cells. In some plants and the nematode Caenorhabditis elegans, individual cells are totipotent.<br /><br />A superorganism is an organism consisting of many individuals working together as a single functional or social unit.<br /><br />Source:<br />http://en.wikipedia.org/wiki/Organism