BIOLOGY
JAMB 2014 - Question 13
Biology 2014 JAMB Past Questions - Question 13: The diagram is the transverse section of a
use the diagram below to answer the questions 12 and 13
A:
B:
C:
D:
Correct Answer
D
Explanation
It lacks central pith. The xylem and phloem lie on different radii and alternating with each other. The outermost covering of the diagram is the poriferous layer. The xylem and phloem tissue do not occur in the same vascular bundle as showing dicotyledonous and monocotyledonous stem. Monocotyledonous root has large central pith surrounded with ring of alternating xylem and phloem.
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