Question

Which of the following groups evolved from reptiles?

विकल्प

• Amphibians and birds

• Amphibians and mammals

• Birds and mammals

• Mammals and crossopterygians

Answer 1

Birds and mammals

Explanation:

Both birds and mammals are evolutionary groups that evolved from reptilian ancestors. Birds evolved from theropod dinosaurs (a group of reptiles), and mammals evolved from synapsid reptiles. Amphibians evolved earlier from different ancestors and are not directly from reptiles, while crossopterygians are lobe-finned fishes, not reptiles. Therefore, birds and mammals share a common lineage that traces back to reptiles.