$A$ : During industrialisation dark-winged or melanised moths were more abundant.
$R$ : They were able to camouflage themselves, hide in the background and survived.

Diagram given below indicates

The eye of octopus and eye of cat show different patterns of structure, yet they perform similar function. This is an example of

The peppered moth (Biston betularia), the black-coloured form becomes dominant over the lightcoloured form of moth in England during industrial revolution. This is an example of

Which one of the following are analogous structures?