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BIOLOGY

JAMB 2008 - Question 4

Biology 2008 JAMB Past Questions - Question 4: Which of the organisms is characterized by the possession of a chitinous exoskeleton?

Use the diagram to answer questions 4 AND 5

Which of the organisms is characterized by the possession of a chitinous exoskeleton?

A: I

B: II

C: Ill

D: IV

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Correct Answer

Explanation

Diagram I is an insect which belongs to the phylumArthropoda. Members of this group have exoskeleton thickened with hard materialcalled chitin. Fishes are covered with scales, birds with feathers while hydrahas ectoderm as outermost layer.