Identify the incorrect statement among the following
$1)$ Fore limbs in mammals such as bat, chetha, whale and man is an example of adaptive divergence
$2)$ Malthus stated that the population does not grow exponentially because of limited resourses
$3)$ Hugo de Vries stated that evolution is a directional process
$4)$ Organism with shorter life span evolve faster than the organism with longer life span

Correct and rewrite the statements by changing the biological term that is underlined in the statement:

The theory of Inheritance of acquired characters was proposed by Watson and Crick.

Statement I: The existence of deleterious genes within the populations is called genetic load.
Statement II: The changes in the frequency of a gene that occurs merely by chance in small populations is called genetic drift.

The correct option among the following is

Assertion (A): There is a sufficient reason to believe that first cells on the planet lived in an atmosphere lacking oxygen.
Reason (R): Thus even all living organisms retain the enzymatic mechanism to completely oxidise glucose without the help of oxygen. 

The correct option among the following is: