I. Rattus rattus. Il. Agama agama III. Bufo regularis IV. Tilapia zillii

A. I, II, III, IV
B. I, IV, III, II
C. II, III, IV, I
D. IV, III, II, I

Correct Answer:

Option D = IV, III, II, I

Explanation

Evolutionary sequence in vertebrates: Fishes → Amphibians → Reptiles → Birds → Mammals.

IV → III → II → I

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