Give any two examples of xerarch succession.

Maximum absorption of rainfall water is done by

Assertion: Insectivorous habitat of plants is to cope up $O_2$ deficiency.
Reason: Insectivorous plants are partly autotrophic and partly heterotrophic.

Plants which are attached to the rocks are called

Given below is a simplified model ofphosphorus cycling in a terrestrial ecosystemwith four blanks $(A-D)$.Identify the blanks.