Energy used since long time ago is a energy production system where the energy is joined with the new resources and alll of that turns into electric energy!<span />
The sugar is the 3' end, and the phosphate is the 5' end of each nucleiotide. The phosphate group attached to the 5' carbon of the sugar on one nucleotide forms an ester bond with the free hydroxyl on the 3' carbon of the next nucleotide.
The oxygen it gives out and the variety of resources of food and water
1. Proximity to water
2. Climate
3. San Fran is at a higher elevation
4. decidous rainforest
Hope this helps