Every year the incredible biological machine called a green plant produces millions of tons of wheat, corn, beans, grass, shrubs and trees.  Since the late 1700's it has been known that the actual organic substance of the plant comes, not from the soil, but from the air!  But plants don't just absorb sunlight energy which they use to remove carbon dioxide from the air, but they also release molecular oxygen.  Humans, animals and many bacteria use this oxygen and, in turn, release carbon dioxide.  Exactly the opposite of plants.  So it seems that the web of interdependent life on earth, which is based on this foundational relationship, is not a random development nor does it just give the appearance of having been designed, because it is designed.  Uplook Magazine, September-October 2005, p.22.  References:  Ray, PM.  The Living Plant.  Second edition.  Holt, Rinehart and Winston, Inc.  1972, p1.