Lesson: Chapter 15 — The biosphere

Biogeochemical cycles 2 of 4 Reset answers

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Question 2

Which bacterium fixes atmospheric nitrogen in the root nodules of legumes?

A Nitrobacter B Pseudomonas C Rhizobium D Nitrosomonas

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Rhizobium. Nitrosomonas and Nitrobacter nitrify; Pseudomonas denitrifies.

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