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WAEC Biology 2002 Question 28

Question 28

Nutrient Cycling

The diagram below is the root system of a leguminous plant. Study it and answer the question.
The structures labelled II are

Diagram for this question
  1. A.groundnut seeds
  2. B.underground root nuts
  3. C.root tubers
  4. D.root nodules.
Show the answer and explanation

Answer: D (root nodules.)

Explanation

The small swellings on the roots of a legume are root nodules.