Calcareous

... factors such as availability of space and inclination of the substrate. A skeleton of organic spongin (type of protein) fibers, or siliceous or calcareous spicules, or a combination of both provides support. They vary widely in coloration (red, orange, blue, yellow, purple, etc.) and the spicules ...

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... Cilla, If you see this, could you give me your opinion please, or your friends? i would certainly appreciate it. http://en.wikipedia.org/wiki/Calcareous

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... metabolic activity of cyanobacterial biofilms, that leads to the biotransformation and biodecay of substrata and to severe damage essentially of calcareous substrata, helps to preserve important sites of archaeological and touristic significance as well as to improve the quality of life and the ...

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... Most of them develop a mantle, which incloses either a branchial or a pulmonary cavity. They are generally more or less covered and protected by a calcareous shell, which may be univalve, bivalve, or multivalve. Formerly the Brachiopoda, Bryzoa, and Tunicata were united with the Lamellibranchiata ...

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... Most of them develop a mantle, which incloses either a branchial or a pulmonary cavity. They are generally more or less covered and protected by a calcareous shell, which may be univalve, bivalve, or multivalve. Formerly the Brachiopoda, Bryzoa, and Tunicata were united with the Lamellibranchiata ...

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