In 1952, Rosalind Franklin took an X-ray photograph revealing the structure of DNA. James Watson and Francis Crick follwed up on this discovery in 1953. They discovered that the molecule has a shape specific to just that molecule.

An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?