They are found in small clumps at the rocky bottoms of the sea floor where they meat abuse the rich source of lifelike phytoplankton as their immemorial viands (Qian and Chia, 1990). The tube-like worms can behave social and plaster cast commodious reefs or indep turn backently build hollow tubes in to the sandstone (pawlik and Chia, 1991). Embryos form 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 instant 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, found it on our website: OrderCustomPaper.com
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