Suppose a scientific team is trying to recreate the energy-producing reactions that occur in the Sun. What would they need for the experiments? hydrogen atoms, heat, and pressure
hydrogen atoms, helium atoms, heat, pressure, and energy
helium atoms and energy
helium atoms and hydrogen atoms

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?