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www.life123.com/question/What-Is-a-Hydroid
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hydroid (hdroid) Any of numerous, usually colonial marine coelenterates of the order Hydroida, having a polyp rather than a medusoid form as the dominant stage of the life cycle.
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www.reference.com/topic/What-Is-Planula
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The picture depicts an example of what a hydroid colony can look like. It is also p... ... Calcification in the planula and polyp of the hydroid Hydractinia
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Hydrozoa - Wikipedia, the free encyclopedia
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en.wikipedia.org/wiki/Hydrozoa
The hydroid form is usually colonial, with multiple polyps connected together by tubelike hydrocauli. The hollow cavity in the middle of the polyp extends into the ...
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www.vattenkikaren.gu.se/fakta/arter/cnidaria/hydrozoa/o...
www.vattenkikaren.gu.se/fakta/arter/cnidaria/hydrozoa/obellive.html
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Hydroid colonies can vary greatly in composition. Many colonies can for example contain defensive polyps. The type of life cycle can vary between different ...
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www.wallawalla.edu/academics/departments/biology/rosari...
www.wallawalla.edu/academics/departments/biology/rosario/inverts/Cnidaria/Class-Hydrozoa/HydroidPolyps/Hydroid_Polyp_Key.html
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Key: Hydroid Polyps. Phylum Cnidaria Class Hydrozoa ...
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timlaman.com/contents/Photo%20Galleries/Raja%20Ampat%20...
timlaman.com/contents/Photo%20Galleries/Raja%20Ampat%20Reefs/image-R4-070423-488/
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Near the smaller island of Fiabacet this Spider crab has hydroid polyps placed on its legs for camouflage. Misool Island vicinity, West Papua, Indonesia.
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jeb.biologists.org/content/38/3/559.full.pdf
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COLONIAL RESPONSES OF HYDROID POLYPS. BY ROBERT K. JOSEPHSON. Department of Zoology, University of California, Los Angeles. {Received 17 ...
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www.oceaninn.com/the-nature-preserve/cnidarians/
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Most hydroids alternate between a polyp and a medusa stage, although not all species have a medusa stage. There are different types of polyps within a hydroid ...
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www.bryozoans.nl/algemeen/en/confusable_species.html
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Ciliate Campanella species, Campanella. Ciliate Zoothamnium arbuscula, Zoothamnium. Hydra species, Hydra. Freshwater hydroid polyp, Hydroidpoliep ...
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