The beginners of a plant succession are called lichens.

The intermediate stages of a plant succession are called colonisers.

Assertion: Crustose lichens, in a lithosere, secrete organic acids causing the weathring of rocks so that minerals essential for proper growth of lichens are released. Reason: Early colonists in a primary suceession are usually lichens, which suggests that colonisation is easier when an organism has a mutualistic association.

Stems found in water plants are called

Write short notes on Plant succession .

An association between roots of higher plants and fungi is called, 1. lichen, 2. fern. 3. mycorrhiza. 4.BGA

Correct sequence of stages of succession of a lithosere is: 1) Foliose lichens rarr Crustose lichens rarr Mosses rarr Annual grasses rarr Perennial grasses rarr Shrubs rarr Trees. 2) Crustose lichens rarr Foliose lichens rarr Mosses rarr Perennial grasses rarr Annual grasses rarr Annula grasses rarr Shrusb rarr Trees 3) Reed swamp stage rarr Sedges rarr Floating plants rarr Submerged plants 4) Sedges rarr Reed swamp stage rarr Floating plants rarr Submerged plants

Correct sequence of stages of succession on a bare rock is: 1) Lichens → Mosses → Grasses → Shrubs → Trees 2) Trees → Shrubs → Lichens → Mosses → Grasses 3) Mosses → Shrubs → Trees → Lichens → Grasses 4) Mosses → Lichens → Grasses → Shrubs → Trees.

Correct the statement: Free floating plants are called halophytes.