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12 Cards in this Set
- Front
- Back
- 3rd side (hint)
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In which poriferans radial symmetry is seen |
Leucoslenia,sycon |
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Digestion and fertilization |
Internal |
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Does progyny seen in poriferans |
Ssd |
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Larvae of leucoslenia and sycon |
Parenchymula Amphiblastula |
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Classification of porifera |
1.calcarea(calcispongia) 2.hexactinellida(hyalospongiae) 3.demospongiae |
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Ascon type larvae |
Leucoslenia |
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Leucon type larvae |
Spongilla |
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Examples of calcareae |
Sycon Leucoslenia Grantia |
Lucifer psycho ku na guarantee illa |
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Features of calcarea |
Caco3 spicules Shallow water Larger chanocytes Monoaxon,triaxon,tetraaxon Exclusively in marine |
Features of syco |
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Features of heaxactinellida |
*deep water *silicious spicules *medium chanocytes *triaxon with six rays Exclusively marine Eg:euplectella(venus flower basket) Hyalonema(glass rope sponge) |
Features of exact person |
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Features of demospongia
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*siliceous spicules,spongin fibres *reduced chanocytes *no triaxon Marine as well as fresh water Eg: euspongiA(bath sponge) Spongilla(fresh water sponge ) Challina(dead man's finger) Cliona(boring sponge) |
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Which porifera reduces pearl production |
Cliona |
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