How do we compute the age of a fossil ?
Which of the following does not illustrate the phenomenon of natural selection?
$A$ : During industrialisation dark-winged or melanised moths were more abundant.
$R$ : They were able to camouflage themselves, hide in the background and survived.
The flippers of the Penguins and Dolphins are the example of the
Which of the following are the correct pair of homologous organs?
$I.$ Hands of man and wings of bat
$II.$ Wings of bat and wings of cockroach
$III.$ Wings of bird and wings of butterfly
$IV.$ Fins of fish and forelimbs of horse
$V.$ Forearm of human and forelimbs of horse
The correct combination is visible in option