Flowers of the Sea: Cnidaria
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Scan day: 04 March 2014 UTC
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Description: Photographic study by Jean-Marie Cavanihac of these marine organisms.
by Jean-Marie Cavanihac, France Unlike bryozoans, in the Cnidarian phylum (including jellyfishes), the tentacles are often more numerous but NOT ciliated. They have defensive structures called cnidocysts, (or nematocysts; the first name is derived from Greek, meaning 'nettle'), which are used to catch prey by injection of paralysing venom. Cnidocysts are cells containing filaments which are suddenly ejected when a prey touches a trigger hair.
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| Page title: | Flowers of the sea: Cnidaria |
| Keywords: | Microscopy, Micscape, amateur microscopy, cnidarians, obelia, planula, cnydocyst, nematocyst, statolith |
| Description: | Bryozoans and cnidarians species. |
| IP-address: | 98.138.19.143 |