The largest ecosystem of the world is:

If a $succession$ occurs in a $hydric$ (aquatic) area,the final climax community will be .....

$A$ natural ecosystem:

The second trophic level in a lake is . . . . . . .

An ecosystem resists changes because it is in a state of .........

Given below is a figure of an ecosystem. Answer the following questions.
$(i)$ What type of ecosystem is shown in the figure?
$(ii)$ Name any plant that is characteristic of such an ecosystem.