Chemistry, 15.01.2021 22:30, sriggins1375

As shown in the figure above, twenty fruit flies are placed in each of four glass tubes. The tubes are sealed Tubes I and II are partially covered with black paper, Tubes III and IV are not covered. The tubes are placed as shownThen they are exposed to red light for five minutesThe number of flies in the uncovered part of each tube is shown in the drawing

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As shown in the figure above, twenty fruit flies are placed in each of four glass tubes. The tubes a...