Mollusca vania rolla

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Mollusca vania rolla

  1. 1. MOLLUSCA<br />Vania and Rolla<br />Kingdom: Animalia<br />Phylum: Lophotrochozoa<br />
  2. 2. Characteristics<br />Soft bodies<br />Typically only consists of head and foot part<br />Body often covered with hard exoskeleton<br />Live in terrestrial mountain tops to the hot vents and cold seeps of the deep sea<br />Size from 20 m long to microscopic size<br />
  3. 3. Structure<br />
  4. 4. Classes<br />MOLLUSCA<br />
  5. 5. Class Bivalvia (Pelecypoda)<br />Bi = two <br />Valvia = valves<br />Bivalvia = have shells composed of two pieces of valves <br />The valves are used to protect themselves from danger and allowing the animals to move in water by clapping the valves together <br />
  6. 6. Lifecycle<br />
  7. 7. Examples<br />Mussels<br />Oysters<br />Scallops<br />Clams<br />
  8. 8. Class Gastropoda<br />They have single shell or no shell<br />Can be found in both salt or fresh water and on land <br />More active and mobile than bivalves<br />There is a concentration of nerve cells in the tentacles and at the anterior end<br />In some animals, eyes are highly developed<br />
  9. 9. Lifecycle<br />
  10. 10. Examples<br />Snails<br />Whelks<br />Abalone<br />Slug<br />
  11. 11. Class Cephalopoda<br />Considered as the most evolutionarily advanced animals to be found among the invertebrates<br />Has a large head, conspicuous eyes and a central mouth surrounded by arms<br />They have well-developed brains, resulting in highly developed sensory system and predatory behavior<br />
  12. 12. Lifecycle<br />
  13. 13. Examples<br />Octopus<br />Squid<br />Cuttlefish<br />
  14. 14. Roles<br />Food source<br />Economic activities  pearl selling, seafood marketing, shells are used for button producing<br />Decorative materials<br />Building materials  shells of oyster are mixed with tar and used for road making un US<br />
  15. 15. Sources<br />http://www.blurtit.com/q631046.html<br />www.ucmp.berkeley.edu/taxa/inverts/mollusca/mollusca.php<br />infusion.allconet.org/webquest/PhylumMollusca.htm<br />

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