Page 139 - Science Course 1 (Book 1)
P. 139

Mo4-L5a: How Do Plant Types Differ?




        The life cycle of a flowering plant includes both                 Key Concept
        gametophyte and sporophyte stages.
                                                                      How Do Plant Types Differ?
                                                             What are the differences between life cycles of
                                                                      seedless and seed plants?
















         Plants that grow from a seed and produce flowers in
         one growing season are called annuals.


         Plants that take two growing seasons to produce
         flowers are known as biennials.

         Perennials are plants that grow and bud for many
         years.








               Mustard

                                       Marigold



                                        Biennials (foxglove, dame’s rocket)




                                        Perennials (peony, iris, daylily)
                Winter               Summer              Winter        Summer              Winter


                                                   SUMMARY

                                           How Do Plant Types Different?
         There are two stages in the life cycle of every   Annuals, biennials, and
         plant—the gametophyte stage and the              perennials are the different
         sporophyte stage.                                growth cycles of plants.

                                                          Most seed plants produce
                                                          flowers.










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