The atom? gas? either one of those two would work
Dna, is all in the Dna. The Dna is made of adenine, thymine, guanine and cytosine which codes for mrna. The mrna codes for amino acid and proteins are made of amino acids. In response to the gene, a gene is a basically a small part of dna in a certain order that codes for specific traits
There are multiple energy source in the ocean. The one thats probably the most common one are Dams. Although Dams can cause some serious flooding. Another one is Tidal energy. Tidal energy is something that turns the energy of tides into energy through Kinetic motion.<span />