*soil moisture
*number of soil types
-The Sun comes closer to Earth and increases its pull.
-The Moon comes closer to Earth and increases its pull.
-The Sun combines its gravitational force with that of the Moon on Earth.
The general principles of Hox gene function and logic elucidated in flies will apply to all bilaterian organisms, including humans. Drosophila, like all insects, has eight Hox genes. These are clustered into two complexes, both of which are located on chromosome