A because if you look it up phytoplankton does uses photosynthesis to produce food.
Answer:
B. Plant Growth
Explanation:
The dependent variable is the result in the experiment. It depends on the independent variable to occur. Hence, the word dependent :) In this situation, the light is the independent variable because it is the factor that the experimenter is changing. It is the only thing that the experimenter changes in the experiment. The resulting plant growth is the dependent variable because it depends on the amount of light to grow. Hope that makes sense!
What would most likely reduce the bias present in Elias' experimental design would be to not ask just the members of his high school team to be the subjects because they represent a very specific group of people. It would be much better to use a random group of people and have them do the same thing.
