Question

Give a example of characteristics being used to determine how close 2 species are in evolutionary terms

Answer 1

Birds are very close to reptiles.This has been proved by a fossil named ARCHAEOPTERIX.

birds have feathers and some dinosaurs also had feathers which they used for insulation.

so,birds are related to dinosaurs.

we know that dinosaurs were reptiles

hence, birds are closely related to reptiles.

hope it helps...

Answer 2

Answer:

Explanation:

• Homologous organs

• Analogous organs

• Vestigial organs