Lec05 - From Seed to Tree I.doc

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Department
Biological Sciences
Course
BIOA02H3
Professor
Mary Olaveson
Semester
Winter

Description
From Seed to Tree Slide One Seed to germinationoSeed dispersaloSeed anatomyoGerminationFrom primary to secondary plant bodyBody plans of major angiosperm groupsSlide Two Parent generation wants the filial generation to be as far away as possibleoFor obvious reasons such as to prevent competition for nutrientsSlide ThreeproblemWithout seed dispersal adaptations most seeds are deposited close to mother plantParentoffspring competition for spaceMating between closely related individualsoInbreeding depressionSlide FourSeventeenseed dispersalPlants need vectors to move the seeds awayoWind dispersalAbioticLight seeds primed for wind HairsParachutesWinged maples prolong their fall to the ground to allow wind to carry it away
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