<span>Dr. Jack Horner's discovery shower that dinosaurs and the very first birds lived at the same time. He noticed similarities in their features and habitat. This supported his hypothesis and later proved that birds evolved form dinosaurs.</span>
Answer:
A. They have the same number of atoms
Watson and Crick described it well in their published work on DNA and its structure. ... This understanding of the structure of DNA is particularly important because it led to the realisation that if there is an adenine on one side of the pair, then the other base must be thymine.