Your statement that implies that life could not exit on earth because the law related to entropy means that complexity cannot be possible would only apply if the earth did not have a source of energy - it clearly does from the sun.
The earth and the moon have stable orbits? - other than the fact that both are much larger than known meteors, the moon is slowly receding and was once closer than it is now, the length of the day was once shorter than it is now, and periodic changes in the earth's orbit have lead to ice ages and warmer periods.
Balance and harmony of life? - the earth has gone through several mass extinctions which took place before humankind appeared. In fact over 90% of species that have lived are now extinct. If you say that humankind is responsible for another mass extinction, I would agree.
Doves building nests? - many abilities are passed on through inheritance.
The information related to the above is available on the Internet. Try using Google.
