Closely related,morphologically similar sympatric populations,but reproductively isolated,are designated as

Normally,gametes are disease-free in human beings or even in other animals because:

Mark the correct statements:
$I.$ Fitness of individuals means reproductive fitness.
$II.$ Homology in vertebrate brain indicates common ancestry.
$III.$ Theory of acquired characters was given by de Vries.
$IV.$ After industrialization,the white moth did not survive due to predators.
The correct option is:

Match the following columns:

List-$I$	List-$II$
$(W)$ Placental mammals and Australian marsupials	$(i)$ Adaptive radiation
$(X)$ Darwin's finches	$(ii)$ Convergent evolution
$(Y)$ Giraffe	$(iii)$ Divergent evolution
$(Z)$ Forelimbs of whale and bat	$(iv)$ Lamarckism

The Permian period,during which the first most modern orders of insects appeared,occurred approximately

Which one of the following is not a true fossil?