HO#20 seed dispersal screen cast

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Name: ______________________________
Period: ______
Page: __________
Introduction to Seed Dispersal Screencast
Directions: View the video at: https://www.youtube.com/watch?v=aG5G4VW-1XI (this link is
also on my website under “links”)to learn about seed dispersal and complete the
following note sheet.
What is seed dispersal?
 Movement of seeds away from parent plant.
Why does it happen?
 To increase the area the plant inhabits and so they don’t have to compete with parent
plant for water, sunlight, space and nutrients.
1. What are the four MAIN methods of seed dispersal?
a. _________________________________
b. _________________________________
c. _________________________________
d. _________________________________
Try it!
2. The video will show pictures of 9 seeds. Based on
the physical characteristics and information about its features, decide which type of
dispersal the seeds use by checking the appropriate box.
Seed #
1.
2.
3.
4.
5.
6.
7.
8.
9.
Animals
Method of Dispersal
Wind
Water
Explosion
Maple
Pond Iris
Burdock
Gorse
Ragwort
Blackberry
Red Campion
Oak Tree
Cotton Grass
3. What is the significance of the Seychelles Palm? _______________________________________
4. How is its seed dispersed? ___________________________________
5. Think about it
Birds and other animals wait to eat berries and other fruits until they are ripe. Explain why
you think they do this? _____________________________________________________________
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