Question

Lichens are pioneer vegetation in

• A. Xerosere
• B. Hydroponics
• C. Marine life
• D. Hydrosere

Answer 1

The correct option is A Xerosere

Xerosere or xerarch succession begins on exposed parent rocks (lithosere) or dry sand (psammosere). The stages are crustose lichen stage (pioneers), foliose lichen stage, moss stage, herbs stage, shrub stage, forest stage (climax stage). In this pioneer, plants are lichens, mosses and Selaginella, that help in soil formation.

Thus, the correct answer is option A.