Question

which of the following represents the correct chronological order (from earliest to most recent)?
insect flight evolves ® end of ordovician extinction ® first vascular plants
end of ordovician extinction ® insect flight evolves ® first vascular plants
insect flight evolves ® first vascular plants ® end of ordovician extinction
first vascular plants ® insect flight evolves ® end of ordovician extinction
end of ordovician extinction ® first vascular plants ® insect flight evolves

Explanation:

The end - Ordovician extinction event occurred around 443 million years ago. The first vascular plants appeared around 420 million years ago. Insect flight evolved around 400 million years ago. So the correct chronological order is end of Ordovician extinction, first vascular plants, insect flight evolves.

Answer:

End of Ordovician extinction ® first vascular plants ® insect flight evolves