Two new species of plants were introduced into an area that was low in available nitrogen compounds in the soil. One formed nodules and one did not. Which species would you reasonably expect to grow more robustly? Explain.

Lets say the plant that formed nodules is Species A, and the one who didn't is Species B.

If the nitrogen is concentrated in one area but at a low concentration, then Species A may have formed nodules because it is closer to the concentrated nitrogen. Species B didn't because the nitrogen that is active is being taken by Species A.

The plant with nodules would grow more than the one without. This is because the nodules give more surface area so the plant can absorb more nitrogen and grow more. Without the nodules the plant would suffer and not grow due to lack of nitrogen.

Explanation: