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Plant Survival

Plants cannot move freely.  Therefore, their seeds and fruits need to be dispersed from the parent plants.  They are dispersed by wind, animal, water or explosive mechanism.

Coconut

Pong Pong

These fruits are dispersed by water.  They are covered with waxy skin.  It prevents water from entering the fruit.  Air spaces in the husk help the fruit to float.



Angsana
Milkweed


Shorea
                                                                                             

These seeds and fruits are dispersed by wind.  They are small, light, dry and have wing-like structure or fine hair.  These characteristics help them to be flown far away easily.








These seeds and fruits are dispersed by animals.  Most of these fruits are brightly coloured, fleshy, edible and have smells.  The seeds are usually hard.
Rambutan
Papaya


Mimosa


Some fruits have hooks that can be attached to animals.


















These fruits disperse their seeds by explosive mechanism.  They dry up and burst to push the seeds out from the fruits.













Dispersal of seeds and fruits help to scatter them far away from the parent plants.   This helps to ensure the survival of plant species.


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4 comments:

  1. These photos and explanation stage by stage are not only clear and attractive furthermore the student can easily understand.

    ReplyDelete
  2. Good informations, thanks for sharing.

    ReplyDelete