Because experiments involve careful manipulation of all factors of interest and careful control of all others, which experiment would not be ethically allowable? the effect of classical music on the ability to solve crossword puzzles the effect of room lighting on color preference the effect of supplementary vitamins on retirement age the effect of prolonged solitary confinement of toddlers on language development

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time