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Suberites
''Suberites'' is a genus of sea sponges in the family Suberitidae.〔http://www.marinespecies.org/aphia.php?p=taxdetails&id=132072 accessed 15 November 2010〕 Sponges, known scientifically as ''Porifera'', are the oldest metazoans and are used to elucidate the basics of multicellular evolution.〔W. Muller, Review: How was metazoan threshold crossed? The hypothetical Urmetazoa. Comparative Biochemistry and Physiology Part A 129, 433 (2001).〕 These living fossils are ideal for studying the principal features of metazoans, such as extracellular matrix interactions, signal-receptor systems, nervous or sensory systems, and primitive immune systems. Thus, sponges are useful tools with which to study early animal evolution. They appeared approximately 580 million years ago.〔 ==Evolutionary Significance==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Suberites」の詳細全文を読む
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