<span>By allowing the ground to grow fallow, it absorbs, through rain and natural means the nitrogen and phosphorus necessary in order to fertilize plants. Then once the field is plowed, the elements mix together to form the foundation by which the seeds can be nurtured and grow more effectively.</span>
It attaches to chromosomes to split them into two identical sets. This allows the cell to reproduce exact copies of itself (assuming we don’t have nondisjunction!)
It is what makes plant stems, leaves, and branches so strong.
