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Mollusk Characteristics

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Answers to Common Questions
･ Usually bilateral ･ Adult gastropods are asymmetrical ･ Epidermis of single layer and many unicellular mucus glands ･ cilliated cells skin of visceral mass forms thin and delicate covering called as mantle or pallium ･ The aliment...
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: They don't have a pseudocoelomate body plan. Why: Mollusks are among the first coelomate animals. This means that they contain a true body cavity (or coelom) within the embryonic mesoderm.
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[1] They all contain a soft body containing a visceral mass, a foot and a mantle [2] The mantle secretes a hard shell [3] They all exhibit bilateral symmetry [4] Radula for scraping usually present [5] They are all protostomes (the first op...
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Answers to Other Common Questions
Characteristics of mollusca include having a nervous system, gaseous exchange organs, they have a pair of kidney and the MORE?
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Other than the usual invertebrate animal things, the presence of the mantle. That's about it. Mollusca is a hugely diverse animal phylum. I could start rattling off all the other characteristics, but for each I'd have to say, "except f...
http://answers.yahoo.com/question/index?qid=20090530201...
Invertebrates are classed by embryological progression of development as protostomes and the lack of an internal skeleton. The arthropods and mollusks both have open circulatory systems with blood pumped into a hemacoel where it must diff...
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