Page 82 - Primary Six Notes
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     Molluscs examples
          Snails live on land and water
          They feed on plants, while others are carnivorous
          Slugs are similar to snails but do not have shells.
          Dangers of molluscs to people.
           Fresh water molluscs are vectors to people. They spread
              worms that cause bilharzia. This worm is called schisto-
              some.





