With reference to ecological succession define the following terms :
I )Climax community ii) Sere(s) iii) Pioneer species.

Explanation

i. Climax Community : The order and sequential parallel changes in the environment leads to a final community near equilibrium is called climax community.
ii. Sere(s) : The entire process of succession is called a sere.
iii. Pioneer Species : The species that invade a bare area is called pioneer species.