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Unit 2  End of unit questions







                2.1   The photograph shows a snowy egret, which is adapted to live in wet places.





















                      Describe three adaptations that help the egret to live in its habitat.
                      For each adaptation, explain how it helps the egret to survive.                        [6]

                2.2   The diagram shows a food web in a forest in Europe.







                                                   kestrel


                                                                       owl


                                                                                  blue tit
                                         fox

                                                                              beetle

                                                                                         caterpillar

                                                 vole                mouse         aphid

                                 rabbit



                                                             blackberry
                                                grass                      nettle


                      a   Name the three producers in the food web.                                          [1]
                      b   Name one predator in the food web.                                                 [1]
                      c   What do the arrows in the food web represent?                                      [1]
                      d   Draw three diff erent food chains, from this food web, that contain an aphid.      [1]
                      e   Suggest what would happen to the populations of the other animals in the
                          food web, if the voles became extinct. Explain your suggestions.                   [3]


                40     2 Living things in their environment
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