On the basis of location, ecological succession may be of……..types.
a) two
b) three
c) four
d) five
Explanation: 1. Xerarch and 2. Hydrarch succession
Plant succession starting on bare ground or rock and culminating in a mature climax forest is called……..
a) primary succession
b) secondary succession
c) Hydrarch succession
d) Xerarch succession
Explanation: A xerarch succession is a form of plant succession starting in the bare ground that is very dry or is limited by the availability of water, and eventually culminating in a mature forest.
Which of the following pioneer species result in the gradual accumulation soil in Xerarch succession?
a) lichens
b) mosses
c) herbs
d) both a and b
Plant succession starting on relatively shallow water such as ponds and lakes and culminating in a muture forest is termed as……….
a) primary succession
b) secondary succession
c) Hydrarch succession
d) Xerarch succession
Explanation: A hydrarch succession is a form of plant succession that starts out in shallow water and eventually culminates in a forest.
The term xerosere refers to changes in community structure during…….
a) primary succession
b) secondary succession
c) Hydrarch succession
d) Xerarch succession
Explanation: Xerosere is a plant succession that is limited by water availability.
A xerosere may include…….
a) lithoseres
b) psammoseres
c) both a and b
d) none of these
Explanation: lothoseres on rocks and psammoseres on sand
