WAEC Biology 2009 Objective — Question 30

Question 30 of 60 from the West African Examinations Council (WAEC) Biology 2009 Objective paper, with the correct answer and a full explanation.

Legumes hold a symbiotic relationship with the bacteria known as

A. A. Nitrobacter
B. B. Nitrosomonas
C. C. Rhizobium leguminosariumCorrect
D. D. Escherichia coli

Explanation

Legumes hold a symbiotic relationship with the bacteria known as Rhizobium leguminosarium, which lives inside the root nodules of the legumes. These bacteria convert nitrogen gas from the air into ammonia, which is used by the legumes for optimum growth.

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