Primary succession occurs in essentially lifeless areas while secondary succession happens where there were previous communities
Answer:
I believe it is A, but I could be wrong.
Explanation:
I think this, because when it says, "Other, less useful, versions of the genetic code were eliminated gradually throughout the course of evolution", I think it referencing to the fact that all animals and etc, are made up of common codes, and how over time, through evolution, certain codes were eliminated, because creatures were evolving.
The answer is (A) evaporation, because when water gets hot it turns into a gas and rises into the air.
