The fake fossils which resemble the remains of plants are known as

Separate the following into homologous and analogous organs:
$I.$ Sweet potato
$II.$ Potato
$III.$ Flippers of penguins and dolphins
$IV.$ Hearts of different vertebrates
$V.$ Forelimbs of whales,bats,and cheetahs
The correct option is:

The presence of gill slits in the embryos of all vertebrates supports the theory of

The age of a rock is calculated on the basis of:

Which of the following is a vestigial organ in human beings?

Wings of pigeon,mosquito and bat show