Multiple choice

The mammals are said to be originated from:

  1. fish

  2. amphibia

  3. reptiles

  4. birds
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Mammals evolved from reptilian ancestors called therapsids (mammal-like reptiles) during the Triassic period. Key mammalian characteristics like warm-bloodedness, hair, and mammary glands gradually developed from this reptilian lineage.

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