Question

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.

Answer 1

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.

Answer 2

Two new species of plants were introduced into an area that was low in nitrogen compounds in the soil. One formed nodules and one did not.

So the species 1  that has formed nodules is expected to grow more robustly than the species 2 that has not formed nodules.

Why species 1 will grow robustly compare to species 2?

Species 1 has formed nodules that result from the symbiotic relation between plant roots and Rhizobia bacteria.

Nodulation is the process of nitrogen fixation which is done by root colonizing, nitrogen fixing Rhizobia.

Nitrogen being an essential nutrient for the growth of the plant, species 1 will grow robustly due to the available nitrogen.

What about species 2?

Whereas, species 2 has not formed nodule, no nitrogen fixation has occurred.

plants can not absorb or take atmospheric nitrogen directly.

Hence, due to unavailability of essential nitrogen in species 2, it can not grow robustly.

To know more about nitrogen fixation :

https://brainly.com/question/13485053

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