Which process must occur before mitosis can occur?.

How should the syntax in this sentence be changed, if at all? the scientists spent years analyzing the results of numerous medical studies meant to identify the cause of the disease. no change the scientists spent years looking at the results of a variety of different medical studies meant to locate the cause of the disease. the scientists spent years reviewing medical study results to find the cause of the disease. the scientists spent years studying the results of many medical studies in order to uncover the cause of the disease.

During which phase is the least percentage of the light that hits the moon visible from earth? new moon waxing gibbous waning crescent full moon

Susan wants to communicate with julia. arrange the steps of the communication process in the correct order.