Hydra (genus) - Wikipedia, the free encyclopedia
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Hydra is a genus of simple fresh-water animal possessing radial symmetry. Hydras are predatory animals belonging to the phylum Cnidaria and the class Hydrozoa. They can be found in most unpolluted ...
en.wikipedia.org/wiki/Hydra_(genus)
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Hydras are simple invertebrates. They live in the water. Their body is radially symmetric. They have a central cavity that serves to both take in food and expel waste. Being Cnidarians they have stinging cells on their tentacles. ... Hydra viridis ... Hydra; Linnaeus, 1758...
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simple.wikipedia.org/wiki/Hydra_(animal)
simple.wikipedia.org/wiki/Hydra_(animal)
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Micscape Magazine for enthusiast microscopy ... Scurrying over the body surface of hydra may be seen a number of small animals. These remove bacteria and other debris. These animals are referred to as 'commensals' and do no harm to the hydra. Trichodina is one such animal and is shown on the right in a high power view.
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www.microscopy-uk.org.uk/mag/articles/hydra.html
www.microscopy-uk.org.uk/mag/articles/hydra.html
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Micscape Magazine for enthusiast microscopy ... The green hydra is hermaphroditic, meaning that male and female organs (gonads) are located on the same animal. ... In the image shown right you will see the male organs just behind the arms; the female organ, much larger, is situated a bit lower on the animal.
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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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Hydra have a saclike body and a circle of tentacles at around the body opening. This opening is used for both taking in food and eliminating wastes. They use the tentacles for catching prey. The tentacles have special cells called nematocysts, which can either sting or stick to the prey. ... Hydra and; Moss Animal Links...
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naturalaquariums.com/inverts/hydra.html
naturalaquariums.com/inverts/hydra.html
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Perhaps the best-known hydrozoan, familiar to most students of introductory biology, is Hydra, pictured at left. Hydra never goes through a medusoid stage and spends its entire life as a polyp. However, Hydra is not typical of the Hydrozoa as a whole.
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www.ucmp.berkeley.edu/cnidaria/hydrozoa.html
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The Phylum Cnidaria includes such diverse forms as jellyfish, hydra, sea anemones, and corals. Cnidarians are radially or biradially symmetric, a general type of symmetry believed primitive for eumetazoans. ... Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students.
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animaldiversity.ummz.umich.edu/site/accounts/informatio...
animaldiversity.ummz.umich.edu/site/accounts/information/Cnidaria.html
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Select the group of features which describes the hydra better. ... ; Organisms may reproduce by single mitosis ... ; A single mitosis not sufficient for organismic reproduction...
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www.lawrence.edu/dept/biology/animal/hydra1.html
www.lawrence.edu/dept/biology/animal/hydra1.html
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You characterized the hydra as follows: ... ; A single mitosis not sufficient for organismic reproduction ... CELLS ORGANIZED IN TISSUES...
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www.lawrence.edu/dept/biology/animal/hydra5a.html
www.lawrence.edu/dept/biology/animal/hydra5a.html
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