Seed Dispersal Mechanisms and Methods

This video tutorial explains various methods of seed dispersal, including wind, water, animals, humans, explosions, rain, trees, and fruit. Each method is illustrated with examples such as dandelions for wind dispersal, teratai for water, burdock for animal, and jagung for human dispersal. The video emphasizes the importance of these methods in helping seeds reach new environments, supporting plant population growth, and maintaining ecosystem sustainability.

What is the primary purpose of seed dispersal?

• To increase the size of the seed

• To help seeds reach new areas suitable for growth

• To make seeds heavier

• To change the color of the seed

Which of the following seeds is adapted for wind dispersal?

• Corn

• Dandelion

• Burdock

• Lotus

How do seeds like lotus disperse?

• By sticking to animal fur

• By floating on water

• By being eaten by animals

• By exploding

Which method of seed dispersal involves seeds attaching to animals?

• Explosive dispersal

• Animal dispersal

• Water dispersal

• Wind dispersal

What role do humans play in seed dispersal?

• They prevent seeds from dispersing

• They help seeds disperse through activities like farming

• They make seeds heavier

• They eat seeds and disperse them

Which type of seed dispersal involves seeds being ejected forcefully?

• Human dispersal

• Water dispersal

• Explosive dispersal

• Animal dispersal

How does rain contribute to seed dispersal?

• By preventing seeds from germinating

• By changing the color of seeds

• By making seeds heavier

• By washing seeds away to new locations

Which plant is an example of dispersal through rain?

• Burdock

• Wild grapes

• Cotton

• Dandelion

What is a characteristic of seeds dispersed by trees?

• They float on water

• They are eaten by animals

• They explode

• They fall and grow near the parent tree

How do seeds within fruits typically get dispersed?

• By being eaten and excreted by animals

• By sticking to animal fur

• By exploding

• By floating on water