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 | Calcarea [1] |
| Demospongiae [0] |
| Hexactinellida [0] |
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Phylum Porifera
Sponges are a diverse group of sometimes common types, with about 5000 species known across the world. Sponges are primarily marine, but around 150 species live in fresh water. Sponges have cellular-level organization, meaning that that their cells are specialized so that different cells perform different functions, but similar cells are not organized into tissues and bodies are a sort of loose aggregation of different kinds of cells. This is the simplest kind of cellular organization found among parazoans. [eng] |
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Porifera Biology on the WWW
'Porifera' is a loose association of taxonomists, biologists, chemists, and paleobiologists whose work focuses on questions dealing with Sponges. [eng] |
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Phylum Porifera
An introduction to the Phylum Porifera, brief discription of the classes of sponges, some images. [eng] |
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porifera discussion list
This list is for those interested in all aspects of sponge biology and sponge chemistry. [eng] |
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Those Silly Sponges
Some interesting facts about sponges for the SpongeBob Squarepants set. [eng] |
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Introduction to Porifera
Some special taxonomy and paleonthology information on Porifera, Sponge References and Links. [eng] |
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Khoyatan Sponge Page - Sponges of The Northeast Pacific
This sponge page is designed as a pictorial supplement to existing descriptions and keys. It will include some undescribed species but is not intended as a medium for formal species descriptions. Scanning Electron Micrographs were taken by Bill Austin at Simon Fraser University. Underwater photographs were largely taken by Neil McDaniel (McDaniel Photography, Vancouver). [eng] |
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Hermit Crab Sponges
Biology, ecology, images of Hermit Crab sponges, "mobile" or "portable" house for crabs. [eng] |
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