In the early 1900s, geologist Alfred Wegener described a process he called continental drift. He proposed that Earth’s continents had once been a single landmass that had broken up and the continents had then moved apart. At first, scientists were skeptical, but they accepted Wegener’s idea when new discoveries supported it. Which term describes continental drift? A. Hypothesis
B. Theory
C. Law
D. Empirical evidence

B. Theory

Behavioral cycles that repeat daily are called "circadian" rhythms.hope my answer has you : ) 

Ibelieve this is the answer:     evolution has no "goal". it is "simply" the survival of the fittest under a given condition. what should be the advantage of living longer? getting kids (=spreading the own genetic information) is done latest until the mid-40s after that we have not much biological meaning.  in addition,  not only does evolution not have a "goal," evolution doesn't necessarily mean "make us better! " it's absolutely possible to evolve negative traits.    hpe i could : )

The development of a new area of science can lead to changes in a theory can happen when you develop the answer choices for your own question lol