Question

Give anexample of characteristics being used to determine how close twospecies are in evolutionary terms.

Answer 1

Thepresence of feathers in dinosaurs and birds indicates that they areevolutionarily related. Dinosaurs had feathers not for flying butinstead these feathers provided insulation to these warm-bloodedanimals. However, the feathers in birds are used for flight. Thisproves that reptiles and birds are closely related and that theevolution of wings started in reptiles.