Question

Identify the correct statements regarding succession of plants.
(i) xerach succession leads finally to mesic conditions
(ii) primary succession is faster than secondary succession
(iii) bryophytes are generally the pioneer species for primary succession on rocks

• A. (i) and (ii) only
• B. (i) only
• C. (ii) and (iii) only
• D. (i), (ii) and (iii)

Answer 1

The correct option is B (i) only

Any succession which takes place is to achieve the stable in between condition which is the mesic conditions. So whether it is a hydrosere or xerosere it will lead in the formation of the mesic condition.

Primary succession includes changes which occur when living things became established on a previously uninhabited area.

Secondary succession occurs when early communities have been damaged, leaving a few organisms and considerate organic matter. Secondary succession is a lot faster because there is the presence of organic material.

Lichens are the early settlers on a barren area because they can tolerate desiccation, heating during summer noon or excessive cold during winter nights. Where rocks of first invaded by crustose lichens.

So, the correct option is '(i) only'