A potential source of nitrogen in a sandy soil environment might be the bacteriu

Question

A potential source of nitrogen in a sandy soil environment might be the bacterium, Rhizobium, which inhabits the root nodules of leguminous plants. Which of these statements is true, and should prevent Rhizobium or other root-inhabiting nitrogen-fixers from contributing nitrogen to the soil in this experiment? A) Mosses evolved before there were substantial amounts of nitrogen in Earth's atmosphere. B) Mosses have no roots. C) Moss gametophytes lack stomata. D) Among land plants, only legumes are known to establish symbiotic relationships with members of other kingdoms.

Explanation / Answer

Mosses do not have proper roots (B) so this should make your experiment easier since you're not worrying about soil nitration by rhizobium

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