Page 13 - 新思维科学活动用书5 样章
P. 13

1   Life cycles of flowering plants



           Practice


           3  Match the way seeds are spread in the first column with the description of how the

               seed or fruit is adapted to the way it is spread in the second column. Draw a line

               from the way the seed is spread to the description of the seed or fruit.


                Way seed is spread           How seed or fruit is adapted to the way it is spread


                By water                     Seed has spines and hooks.


                By wind                      Seed pods dry out and burst open.

                By animals                   Seed has spongy covering that helps it float.


                By explosion                 Seed is very light with thin papery wings.




           4  Describe another way in which plants are adapted to seed dispersal by animals.

               Give an example.




















           5  Why must seeds be spread?


























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