If you were able to monitor the progress of this reaction via IR spectroscopy, describe what the spectra would look like as the reaction proceeds. (a) Explain how an IR spectrum of the starting material would look different than the product and (b) based on that, what would you expect the IR spectrum to look after the reaction is 50% complete? Assume that only vanillin and vanillyl alcohol show up in the IR spectrum.

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.