Which one of the following pairs of items correctly belongs to the category of organs mentioned against it?
Nephridia of earthworm and Malpighian tubules of cockroach excretory organs
Wings of honey bee and wings of crow homologous organs
Thorn of Bougainvillea and tendrils of Cucurbita analogous organs
Nictitating membrane and blind spot in human eye vestigial organs
In the case of peppered moth (Biston betularia) the blackcoloured form became dominant over the lightcoloured form in England during industrial revolution. This is an example of
Which of the following relates to the determination of age of the tree by counting the number of annual rings