seed dispersal
DESCRIPTION
SEED DISPERSAL. By: Adam, Marcus, Zi Yi, Denise MADZ :D. Different types of seed dispersal. Dispersal by water Dispersal by wind Dispersal by splitting/explosion Dispersal by animals. Dispersal by water. The seeds are encased in a with a fibrous husk - PowerPoint PPT PresentationTRANSCRIPT
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By: Adam, Marcus, Zi Yi, DeniseMADZ :D
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Dispersal by waterDispersal by windDispersal by splitting/explosionDispersal by animalsDifferent types of seed dispersal
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The seeds are encased in a with a fibrous husk The fibrous husk traps air which helps the fruit to float on water as it is light
Dispersal by water
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The seed has a wing-like structures or feathery structures, which are lightweightThe seeds structure allows it to drift away from its parents planthttp://www.youtube.com/watch?v=UYEUoSQXdcE
Dispersal by wind
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The seeds can hook onto the fur of passing animals and be carried to other placesThe seeds are light and a hook-like structureAnimals would eat the fruits, swallow the seeds and pass them out as droppingsDispersal by animals
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Seeds dispersed by splitting often grow in podsThey would split open when ripeThe force would fling the seeds out and scatter themDispersal by splitting/explosion
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1)How does the coconut disperse its seeds?Ans: It is dispersed by water2)List 3 seeds dispersed by wind.Ans: Angsana, dandelion, African tulip3)When will the seeds split open?Ans: When they are ripe.Quiz time!
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Sources:www.google.comwww.vtaide.comwww.wikipedia.comwww.youtube.com
Thanks for listening!