Question

Differentiate between flying of cockroaches and flying of birds

Answer 1

Movement of birds: Birds show movement by flying through their two thick wings. They have one pair of legs.
Movement of cockroach: They move swiftly by with the help of their three pair of legs. Their legs also allows them to climb the walls. They have two pair of wings which allows them to fly to shorter distances.

Answer 2

Answer:

Wings of cockroach and a bird are the analogous organs, cockroach and a bird do not share a common ancestor and hence indicate convergent evolution.

Convergent evolution is the independent evolution of similar features in species of different lineages. Wings of cockroach and a bird have the same functions of aiding in flying but differ in their structural anatomy. Thus these are analogous organs. Cockroach and the birds are analogs of each other that do not share a common ancestor and hence indicate convergent evolution. So, the correct answer is 'Wings of cockroach and a bird are the analogous organs, cockroach and a bird do not share a common ancestor and hence indicate convergent evolution.'.