Which of the following phenomena supports Darwin's concept of natural selection in biological evolution?

Identify $P, Q,$ and $R$ in the following descriptions of natural selection types:
$P -$ More individuals acquire peripheral character values at both ends of the distribution curve.
$Q -$ More individuals acquire mean character value.
$R -$ More individuals acquire value other than the mean character value.
$\quad\quad P \quad\quad\quad Q\quad\quad\quad R$

Which of the following does not illustrate the phenomenon of natural selection?

$A$ major criticism of Darwinism is that it....

The distribution of different plants geographically is called:

The chance of elimination of genes from a small population is an example of