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Molluscs, Mollusks, Mollusca

Make your learning a conversation with others!  You have watched the video on mollusks. You have taken notes from the lecture. And you have dissected both a clam and a squid.  Now you must take the information and your studies of the mollusks and write an analysis, a conversation of what you learned. This analysis must be posted on your marine biology blog.

Write your analysis as a discussion or a story. Please do NOT write your analysis as a list of answered questions, even though you have been given a list of questions. The questions below are meant as a GUIDE for your discussion. Insert the answers into a story of your investigation into the world of mollusks.

You will be assessed on 1) knowledge of the subject material; 2) describing the material in your own words and in an interesting manner; and 3) personal contribution to the topic. And please provide illustrations, with citations.

Adaptation and Variation in Mollusks

  • What is the morphological feature of molluscs after which the phylum is named?
  • What are the biological troubles that molluscs face due to their soft body?
  • Into which classes are mollusc divided? What are some representing beings of each class?
  • Is there any body symmetry in the animals you dissected? Describe it.
  • Describe your notes about any textures, shapes and other observable qualities in the animals you dissected.
  • What is the function of the clam’s mantle?
  • How does the locomotion of the squid and clam compare?
  • Why do you think the squid and the octopus have camouflage, whereas the bivalves and gastropods do not?
  • Compare the feeding methods of bivalves and gastropods. Of bivalves and cephalopods.
  • What organs are present in both human and mollusc bodies?
  • Describe the special adaptation that mussels have for surviving strong wave action along the shore.
  • Why is the octopus considered to be so intelligent?
  • What are examples of the ecological and economic importance of molluscs?

Be thorough and complete.

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