The answer would be D.: <span>Helicases separate the two strands of the double helix, and DNA polymerases use each of the original strands as templates to create two new strands. :)</span>
It does not produce hormones
The answer is Oceans because the biosphere extends from the deepest root systems of trees,to the dark environment of ocean trenches,to lush rain forests and high mountaintops.
There are many ways to do this. You can either create a close approximation to what you think are the most relevant variables and hope your idea about the relevant variables was true.
Another way would be to do different kinds of experiments and hope you can deduce information from those experiments onto the subject that you would like to find an explanation for.