Answer: corals, crabs, oysters and urchins
Explanation:
Marshall Nirenberg and Heinrich Mattaeis contributed to out current understanding of the genetic code by discovering genetic codons. Their experiment deciphered the first of the 64 triplet codons in the genetic code by using nucleic acid homopolymer to translate specific amino acids. Their experiment cracked the first codon of the genetic code and showed that RNA controlled the production of certain types of proteins.<span />
Correct do not use fossil fuels is the answer
Plants produce oxygen and glucose as a result of photosynthesis