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JAMB Biology 2021 Paper

Question : 27

Total: 40

Solution:

Concept:

Vertebrate evolutionary advancement follows the sequence: fish → amphibian → reptile → mammal.

Explanation:

\mathrm{IV}

Tilapia zillii is a fish.

\mathrm{III}

Bufo regularis is an amphibian.

\mathrm{II}

Agama agama is a reptile.

\mathrm{I}

Rattus rattus is a mammal.

Evolutionary advancement increases from fish to mammal:

\mathrm{IV} \to \mathrm{III} \to \mathrm{II} \to \mathrm{I}

Thus, the correct order is

\mathrm{IV}, \mathrm{III}, \mathrm{II}, \mathrm{I}

Answer:

D. IV, III, II, I

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