D: All the variables are controlled except one.
In this case the objects must be touching
His discoveries on the islands were paramount to the development of his Theory of Evolution by Natural Selection.
On the islands, Charles Darwin discovered several species of finches.
Thanks to his close observations, he discovered that the different species of finches varied from island to island.
Answer:
Its chemical formula is C6 H12 O6,
Explanation:
I just counted the atoms for each element .
