Multiple choice

Dinosaurs were

  1. mammals that became extinct

  2. large herbivorous creatures which gave rise to hippopotamus species

  3. egg-laying mammals

  4. reptiles that became extinct
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Dinosaurs are biologically classified as reptiles that lived during the Mesozoic Era and became extinct approximately 66 million years ago.

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