Leaves and Photosynthesis

This is a kind of  tree named " populus alba " . The tree is  very common . Populus alba have strong ability to survive . It's usually as tall as 15~30 meter .It is in direct sun-light . The leaves are 4–15 cm long .The leaves on the tree are about 1 million leaves .

   This plant named Gomphrena globosa, commonly known as Globe Amaranth or Bachelor Button, is an annual plant that grows up to 24 inches in height . I was planted it out of my house . I don't even need to water it everyday .Because here is always rain . It's growth very fast . The leaves are 5 - 10 cm long . I'm not sure how many leaves on the plant . Because it's growing . 

  The front color of the leaves are green than the  color back of the leaves . That means more chlorophyll are stay at the front .That's in favour of photosynthesis happens .

Mutations

      In animal world , they always evolve by mutation . Sometimes it's good . Sometimes it's bad . For  mutation  I have an idea about that chicken can fly as a bird .We all know chicken  looks like bird , they have wings but they can't fly as a bird .  

      

    Those chicken in farm are  been domesticated long time ago .But those chicken in the wild will fly as a bird because they have to adapt the environment . They have to feed themselves every . So that must be  improve their flying ability . That will make their predators feel (insect) some threat . The population of their predators will be reduce .

      
         I think this is the result of natural selection .