Tom stops using a new skin cream for five days to determine if the cream is the cause of a recent rash. what stage of the scientific method is tom using? plz i think it is experimenting. experimenting hypothesizing predicting evaluating

the transfer of energy between two molecules spaced just nanometers apart plays a key role in many technologies, including photovoltaics, quantum information systems, lighting, and sensors, as well as in biophysics to measure nanometer distances and in photosynthesis. but an open question in this area is what effect, if any, the surrounding photonic environment has on this nanoscale energy transfer. by designing and performing a carefully controlled experiment to answer this question, scientists have settled the debate and found clues to improving the efficiency of many of the technologies that rely on this process.

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answer; i believe that the correct answer is ; males are hemizygous for the x chromosome;