Evolution is not continuous. It is a jerky and discontinuous process. This is the punch line of:

Which of the following can be used as an illustration to demonstrate the process of evolution in animals?

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.
$\quad\quad P \quad\quad\quad Q\quad\quad\quad R$

What is the phenomenon called when variation in gene frequency in a population occurs by chance rather than by natural selection?

What are the key concepts in the evolution theory of Darwin?

Select the correct pair regarding the population of moths in the $1920$s.