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BIOLOGY

JAMB 2008 - Question 13

Biology 2008 JAMB Past Questions - Question 13: In a dicotyledonous stem, the zone between the epidermis and the pericycle is the

Choose the most appropriate option for the gap .

In a dicotyledonous stem, the zone between the epidermis and the pericycle is the

A: cortex

B: stele

C: xylem

D: phloem

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Correct Answer

Explanation

Cortexis composed of collenchyma parachyma and endodermis. These three Jayersconstitute the outer cylinder of the stem. The stele is the inner cylinder andconsists of pericycle, vascular bundles, pith and medullary rays. The xylem andphloem form part of the vascular bundle below the pericycle. ANS A