Sounds like infectious would fit.
It was the type of diversity that had to do with the niche depending on which niche you are is the amount of varaiaton in your gene pool
the answer is a because if the model is based on experimental data it wont be good unless it has been tested.
Answer:
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Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.