Chapter 1. Section 2 Scientific Enterprise. Limits of Science. Will Science always provide answers to your questions?. No, Science doesn’t have all the answers Science is limited. Ethics. deals with moral values about what is good or bad.
human studies might be more reliable
discoveries might benefit millions
humans can give better feedback than non-humans
research might be dangerous to health and well-being of humans
might be more expensive or take more time than non-human testing