Microorganisms

Friday, 25 November 2011


PLANT SURVIVAL:

  • Plant cannot move freely. Thus, their seeds and fruits need to be dispersed from their parents.
  •  They can be dispersed by wind, water, animals or  explosive mechanism.
 

  •            The seeds that need to be dispersed by wind are small, light, dry and have wind-like structure.
  • angsana

  •       Seeds that dispersed by water are covered with waxy skin. It prevent water from entering the fruit. Air spaces in the husk help the fruit float.
  •      The fruits that dipersed by animal are brightly coloured, fleshy, edible and have smells. the seeds are   usually hard.
Watermelon


Mango

  •       The fruits liked okra, balsam, rubber seeds are dispersed by explosive mechanism. They are dry 
                up and burst to push the seeds out from the fruits.