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Scientists from the Animal Ecology and Cell Biology Institute of the University of Veterinary Medicine Hannover were able to develop a many-headed jellyfish when Cnox genes were deactivated. ... Now for the first time, ... ; This provides new insights into the genetic regulation of head formation in basal animals. If a certain...
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www.scientificblogging.com/news/hydra_jellyfish_grown_i...
www.scientificblogging.com/news/hydra_jellyfish_grown_in_a_petri_dish
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The phylum Cnidaria includes the hydras, jellyfishes, and sea anemones. Cnidarians have two main body forms: the cylindrical tentacled polyp, exemplified by the hydra and the sea anemone, and the bell-shaped (or inverted saucer-shaped) medusa.
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www.britannica.com/EBchecked/topic/278116/Hydra/278116r...
www.britannica.com/EBchecked/topic/278116/Hydra/278116rellinks/Related-Links
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They are freshwater hydras. These predators live on the underside of the rocks throughout the reef area of Avon Point. They are between 2 and 5mm. long and during the months from late May to July they are found on the reef by the thousands.
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home.centurytel.net/lakeerieecosystem/hydras.html
home.centurytel.net/lakeerieecosystem/hydras.html
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Hydras, jellyfishes, and sea corals are types of cnidarians. Sponges have no true tissues or organs, no digestive tract, and no nervous system. Their bodies are loosely organized into two cell layers. Support comes from hard structures called spicules or from flexible material called spongin.
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www.pearsonsuccessnet.com/ebook/products/0-13-181118-5/...
www.pearsonsuccessnet.com/ebook/products/0-13-181118-5/blat8260.pdf
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An overview of the Cnidaria, with notes on the evoution of the group ... This diverse group of very simple-bodied animals includes corals, sea anemones, hydras, jellyfishes, and their relatives. About 9,000 living species are known. The Cnidaria are the simplest Metazoa, and do not even possess organs.
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www.palaeos.com/Invertebrates/Cnidaria/Cnidaria.htm
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This group includes the hydras, jellyfishes, sea anemones and corals. The Cnidarians have two primary germ layers, an ectoderm and an endoderm, ...
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www.twcnet.edu/jberch/mshoop/B174/Labs/174-03%20Cnidari...
www.twcnet.edu/jberch/mshoop/B174/Labs/174-03%20Cnidaria.doc
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Information about hydra, a colenterate ... Return to main pond animals page ... Hydra belongs to the phylum Colenterata and the class hydrozoa.
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microscope-microscope.org/applications/pond-critters/an...
microscope-microscope.org/applications/pond-critters/animals/hydra.htm
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To this phylum belong jellyfishes, corals, sea anemones and polyps, characterized by stinging organelles, called cnidae or nematocysts. ... Hydras managed to overcome this barrier and are found almost everywhere in clean water where they can attach themselves to a substrate (plants, stones). Hydras had already been studied...
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www.microscopy-uk.org.uk/mag/artjun98/janhydra.html
www.microscopy-uk.org.uk/mag/artjun98/janhydra.html
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Micscape Magazine for enthusiast microscopy ... Welcome to Micscape Magazine - the monthly e-zine for enthusiast microscopists contributed to by people all over the world. Interested in the small-scale world? Then you are in for a thrill. ... You are using a browser that doesn't support our menu navigation system which uses Frames.
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www.microscopy-uk.org.uk/mag/artnov99/fwjelly.html
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