Crop plants can have higher densities of stomata on the underside of their leaves than on the surfaces of their leaves. Some scientists hypothesize that that the evolution of this adaptation enhanced the ability of these plants to regulate the rate of CO 2 uptake for each surface.
-Suppose you wanted to test this hypothesis using sunflower plants. Which of the following would be the best procedure regarding the groups you use in your experiment?

Question

Quizplus · Accepted Answer

The best procedure would be to choose two equal-size groups of sunflower plants, with one group being the experimental group and the other being the control group. This would allow for a direct comparison between the two groups and provide a clear analysis of any differences in CO2 uptake rates. Option B is not appropriate as zinnia plants are not relevant to the hypothesis being tested. Option C and D are not appropriate as manipulating the number of plants in the groups would introduce confounding variables and make it difficult to interpret any differences in CO2 uptake rates.

Crop Plants Can Have Higher Densities of Stomata on the Underside