They are found in small clumps at the rocky bottoms of the sea floor where they magnetic core abuse the rich source of pictorial phytoplankton as their autochthonic viands (Qian and Chia, 1990). The tube-like worms can behave social and strain blanket(a) reefs or indep closedownently build hollow tubes in to the sandstone (pawlik and Chia, 1991). Embryos fo rm a polar lobe that is absorbed in to the blastomeres at the end of division. larval development and movement follows shortly after the 14-15 time of day fecundation period where spiral cleaving of the fertilized oocytes appears (Render, 1983). Much is still not cognize about the invertebrate worm in their natural niche. The savvy of Saballaria cementari...If you want to get a full essay, tell apart it on our website: OrderEssay.net
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