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12.Ecosystem
normal
Find out the correct order of succession levels in xerarch.
A
Lichen, moss stage, annual herb stage, perennial herb stage, scrub stage, forest
B
Annual herb stage, perennial herb stage, lichen, moss stage, scrub stage, forest
C
Perennial herb stage, annual herb stage, lichen, moss stage, scrub stage, forest
D
Scrub stage, forest, annual herb stage, perennial herb stage, lichen, moss stageZ
Solution
Succession levels in xerarch (xerosere/lithosere) are:
$(i)$ Lichen stage, $e.g.$, Crustose lichens followed by foliose lichens.
$(ii)$ Moss stage, $e.g.$, Tortula, Polytrichum
$(iii)$ Annual grass stage, $e.g.$, Cymbopogon
$(iv)$ Perennial herb and shrub stage, $e.g.$, Rubus, Capparis, Zizyphus.
$(v)$ Climax community, $e.g.$, Forests with herbs, shrubs and trees.
Standard 12
Biology
