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3Q SCIENCE-2 Invertebrates Part2 (Worms and Moll ...

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  • What are the three types of mollusks? 
    The three types of mollusks are UNIVALVES, BIVALVES, and CEPHALOPODS.
  • What is hermaphroditic?
    Hermaphroditic is having both male and female reproductive organs.
  • How do tapeworms cling to the intestinal wall of another animal?
    Tapeworms cling to the intestinal wall of another animal using HOOKS and SUCKERS.
  • What are the simplest types of worms?
    Flatworms (Platyhelminthes) are the simplest types of worms.
  • What special organ help animals absorb oxygen from the water?
    GILLS are special organs that help animals absorb oxygen from the water.
  • What are the most common segmented worms?
    Earthworms are the most common segmented worms.
  • What are tapeworms?
    Tapeworms are flatworms that are found in the intestinal wall of another animal.
  • Describe the three types of mollusks.
    UNIVALVES have one shell. BIVALVES are hinged together. Squid and octopus are examples of CEPHALOPODS. The squid have highly reduced internal shell.
  • What do you call invertebrates with long, soft, usually cylindrical bodies, and without legs?
    Worms are invertebrates with long, soft, usually cylindrical bodies, and without legs
  • What are "threadlike worms"?
    Roundworms (nematodes) are "threadlike worms." They have tube-like bodies that are pointed at both ends.
  • What are the simplest animals with two openings? Describe these openings.
    Roundworms (nematodes) have TWO POINTED ENDS with openings--the mouth and the anus.
  • What do you call the brain of a flatworm?
    Flatworms have a simple brain called GANGLIA, which is a bundle of nerves.
  • What are parasitic animals?
    Parasitic animals live in the body of another animal for food.
  • What is the term for animals that are NOT parasitic?
    Animals that are not parasitic are called FREE-LIVING animals.
  • What do you call the brain of a flatworm?
    The brain of a flatworm is called a GANGLIA.
  • What are animals with soft bodies that live oceans, streams, and moist soil?
    MOLLUSKS are animals with soft bodies that live oceans, streams, and moist soil.
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