Question

What does the following sequence represent ?

Blue-Green Algae $\to$ Crustose Lichens $\to$ Foliose Lichens $\to$ Mosses $\to$ Shrubs $\to$ Dicotyledonous trees

• A. A food pyramid
• B. Ecological succession
• C. Genetic drift
• D. Phylogenetic trend

Answer 1

The correct option is B Ecological succession

Ecological succession is the process of evolution of a newly formed water body or a soil body into a forest land.

The mentioned process represents the evolution of a newly formed rock into a forest area. It involves the steps :

Blue -Green Algae →→Crustose Lichens →→ Foliose Lichens →→ Mosses →→ Shrubs → Dicotyledonous trees