James Watson’s discovery of the base pairings in the DNA helix was a result of trial and error. He discovered that adenine pairs with thymine and that guanine pairs with cytosine after he continually attempted to align models of the bases in other combinations. Which best describes how this example illustrates creativity? A. Watson’s trial-and-error approach shows that he had run out of other ideas to try in searching for the answer.
B. Watson’s trial-and-error approach shows that he was using the process of elimination to solve his base pair problem.
C. Watson’s trial-and-error approach shows that he preferred to guess rather than apply logic to the problem.
D. Watson’s trial-and-error approach shows that he was willing to consider multiple base-pair arrangements as possible answers.

P. S Its not B

The earth's moon is unusually large. two popular theories of the moon's origin include the "sister world" hypothesis, which states that the moon formed from the same materials as the earth, near enough to the earth that they fell into orbit around each other. a second theory is the "capture" hypothesis, in which the moon formed elsewhere in the solar system, and the earth's gravity pulled it into its orbit. studies of what the moon is made of indicate that some of its materials had to come from the earth or from the same area of the solar system where the earth had formed. at the same time, the moon does not contain much of the material that makes up the earth's core, so the moon could not have formed from the same materials as the earth. how do the two facts above affect the described theories of the moon's origin? a. they show that scientists will never agree on where the moon came from. b. they show that more experiments on moon formation need to be done. c. they show that no theory accounts for the existence of the moon. d. they show that neither theory is complete and entirely correct.

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

Areaction in which products can react to re-form reactants is