rodents to bats reptiles to birds aquatic organisms to land-based organisms invertebrates to flying organisms
I gave my students this multiple choice question: The discovery of a fossilized animal with teeth, a long bony tail, and feathered wings helped to establish which evolutionary sequence?

Only one answer is correct among these 4 choices:
- rodents to bats
- reptiles to birds
- aquatic organisms to land-based organisms
- invertebrates to flying organisms

Could you tell me which one is correct?

reptiles to birds