Charles Darwin was influenced by the writings of which of the following?

Select the correct option for $X$ and $Y$ in the chart shown below.
[Chart Structure: Primitive Reptiles -> (Sauropsids,$X$); $X$ -> $Y$; $Y$ -> Therapsids]

Which one of the following scientists is not related to organic evolution?

Which of the following are the wrong statements?
$I.$ Organs which are different in basic structure and origin but perform similar functions are called analogous organs.
$II.$ Organs with different basic structure and origin but perform similar functions are called homologous organs.
$III.$ Homologous organs lead to convergent evolution.
$IV.$ Analogous organs lead to divergent evolution.
The correct combination is:

Match the columns:

Column-$I$	Column-$II$
$(1)$ Charles Darwin	$(a)$ Mutation theory
$(2)$ Lamarck	$(b)$ Germ plasm theory
$(3)$ Hugo de Vries	$(c)$ Philosophie Zoologique
$(4)$ Ernst Haeckel	$(d)$ The Origin of Species
$(5)$ August Weismann	$(e)$ Biogenetic law
-	$(f)$ Essay on Population

The greatest evolutionary change enabling land vertebrates to be completely free from the water habitat was the development of: