Question

The wings of butterflies and birds are ----------- structures because, although they are used for the same purpose (flight) they have very different structural compositions. Bird wings are made of bones and feathers while butterfly wings are made from chitin and are part of the insect’s exoskeleton.
A) homologous
B) analogous
C) vestigial

Answer 1

B. They are analogous structures because they share the same function, but not fully the same structural characteristics

Answer 2

B, analogous structure, they both share the same purpose, but are structurally not the same.