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Description: Hydrozoa consist of several marine organisms existinting in all three layers of the marine habitat. ... Another sessile Hydrozoa is the Hydra which is truely unique among the Hydrozoans. The Hydra is solitary, lacks a medusoid phase and feeds with long tentacles that extend from around the mouth.
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oz.plymouth.edu/~lts/invertebrates/Primer/text/hydrozoa...
oz.plymouth.edu/~lts/invertebrates/Primer/text/hydrozoa.html
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The Hydrozoa include solitary or colonial cnidarians, which have a noncellular mesoglea, lack tentacles within the gastrovascular cavity, and have no gullet. As a rule, the hydroid stage predominates in the life cycle, although in some the jellyfish ... Related content from HighBeam Research on: Cnidaria: Class Hydrozoa...
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www.infoplease.com/ce6/sci/A0857402.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
www.ucmp.berkeley.edu/cnidaria/hydrozoa.html
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The Hydrozoa is a subgroup of cnidarians containging approximately 3700 species. It is a diverse group with a variety of life cycles, growth forms, and specialized structures. Like many cnidarians, ... Home Kingdom Animalia Phylum Cnidaria Class Hydrozoa ... Class Hydrozoa hydralike animals, hydroids, and hydrozoans...
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animaldiversity.ummz.umich.edu/site/accounts/informatio...
animaldiversity.ummz.umich.edu/site/accounts/information/Hydrozoa.html
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The animals of the class hydrozoa have both a polyp and medusa stage. Siphonophores are a type of hydrozoan with a float for buoyancy. Probably the most famous of these is the species physalia, the Portugese-man-of-war, which is a type of colonial siphonophore.
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www.cyhaus.com/marine/hydroids.htm
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1. Data Use Agreements ... 2. Citing Data ... The goals and principles of making biodiversity data openly and universally available have been defined in the Memorandum of Understanding on GBIF, paragraph 8 (see the relevant excerpts in the attached Annex).
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data.gbif.org/species/browse/taxon/13140961/
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Although there are no very obvious synapomorphies, the Hydrozoa are a monophyletic group. ... The class falls into two clear subclasses, the Trachylinae and the Leptolinae (see below).
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www.ville-ge.ch/musinfo/mhng/hydrozoa/hydrozoa.htm
www.ville-ge.ch/musinfo/mhng/hydrozoa/hydrozoa.htm
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However, the simple Hydra is not representative at all for the Hydrozoa and it may actually give a wrong impression of the complexity of this animal group.
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www.ville-ge.ch/musinfo/mhng/hydrozoa/hydrozoa-director...
www.ville-ge.ch/musinfo/mhng/hydrozoa/hydrozoa-directory.htm
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Definition of class Hydrozoa in the Online Dictionary. Meaning of class Hydrozoa. Pronunciation of class Hydrozoa. Translations of class Hydrozoa. class Hydrozoa synonyms, class Hydrozoa antonyms. Information about class Hydrozoa in the free online English dictionary and encyclopedia. ... class Hydrozoa; class Hymenomycetes;
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www.thefreedictionary.com/class+Hydrozoa
www.thefreedictionary.com/class+Hydrozoa
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