I believe it that the answer is C. Hope this helps
C.All living things are made of the same elements
Answer: codon AUG
Explanation: The codon AUG is called the START codon as it the first codon in the transcribed mRNA that undergoes translation. AUG is the most common START codon and it codes for the amino acid methionine (Met) in eukaryotes and formyl methionine (fMet) in prokaryotes.
The first level of organization are living cells
Has varied greatly over time