passwella.
Menu

JAMB Biology 1995 Question 10

Question 10

Growth and Development

Secondary thickening in dicotyledonous stem is controlled by the

  1. A.xylem
  2. B.phloem
  3. C.cambium
  4. D.pericycle.
Show the answer and explanation

Answer: C (cambium)

Explanation

The cambium divides to add new xylem inside and new phloem outside, making the stem thicker.