<span>The RNA world is the hypothesized format of chemical life that existed prior to our current DNA and RNA world. In the RNA world, RNA molecules formed in the primordial soup and began to evolve by self-replication and mutation. This led to increased complexity, natural selection of "better" RNA and diversification of RNA based life.</span>
Extinction DIF; Having no more existing or living members
The larger the organism is the more cells and the bigger the organism is it will <span>allow it to do more things.
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Answer: Option A.
Explanation: The correct answer to the question is option A, because not all proteins are made up of some combination of 20 essential amino acids.
