The law of conservation of energy says (5 points)

energy can be created but not destroyed

energy can be destroyed but not created

energy cannot be created or destroyed

new energy is made only when needed

American scientist, linus pauling, was one of many scientists racing to discover the molecular structure of dna. pauling initially thought that the molecule was a triple helix. later, james watson and francis crick unveiled their double helix model, which turned out to be an accurate description of the molecule's shape. why did watson and crick succeed when pauling failed?