Phylum Annelida and Phylum Mollusca

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Across
  1. 1. In polychaetes each segment has a __ of parapodia.
  2. 5. This class is composed of Leech.
  3. 8. Annelid's body wall is made of __ and longitudinal muscles.
  4. 11. What is the marine annelids?
  5. 13. Annelids have __ symmetry.
  6. 14. Soft-Bodied animals.
  7. 15. mollis means?
  8. 17. The ribbon like set of teeth is called ___.
  9. 18. Worm with elongated bodies divided into ringlike segments.
  10. 19. This class is composed of Earthworms.
  11. 20. They are valveless mollusks.
Down
  1. 2. The squid has the remnant of molluscan shell called ___.
  2. 3. Mollusks __ plan is bilaterally symmetrical,tridermic, with well developed organs and system
  3. 4. This is represented by the snails and slugs.
  4. 6. Have shells consisting of two valves.
  5. 7. Polyplacophora or ___?
  6. 9. Mollusk's body is divided into three parts head, ___ and visceral mass.
  7. 10. Pelecypoda shells is made of ___.
  8. 12. Mollusks produce an exoskeleton called __.
  9. 16. Scaphopoda is also known as ___.