Step 3. Plan an investigation to explain how reactants (light) affect the release of products (oxygen) during photosynthesis. Recall that in an experiment, you can test only one variable at a time. Write
steps or procedure that you will use below. Remember, you are using distance from the light to vary
the light intensity.

Bob, a nutritionist who works for the university medical center, has been asked to prepare special diets for two patients, susan and tom. bob has decided that susan's meals should contain at least 320 mg of calcium, 17 mg of iron, and 42 mg of vitamin c, whereas tom's meals should contain at least 280 mg of calcium, 13 mg of iron, and 34 mg of vitamin c. bob has also decided that the meals are to be prepared from three basic food