seed dispersal Flashcards
how are seeds dispersed
when seeds are dispersed away from each other, this is so that they have space to grow.
The main methods of seed dispersal
Wind
Animal
Water
Explosive
Wind dispersal
the wind usually catches fruit as they have a small mass and extensions that parachutes or wings.
Animal dispersal
Internally- as fruits are usually bright colours, this attracts animals to them. When the seed goes through an animal, it is not damaged as the seed has a hard coat.
Animal dispersal 2
Externally- some fruits have hooks which stick to animals. the seeds get caught in there fur.
Water dispersal
When plants live near water, they usually disperse with a small mass on water. Seeds are then transported away from the parent plant in streams or rivers.
Explosive dispersal
When a fruit is ripe they usually burst open. This means it is usually sweet.