Q. No.
Which type of succession could occur at newly cooled lava, bare rock, newly created pond or reservoir?
1. Early succession
2. Primary succession
3. Secondary succession
4. None of the above
Why does secondary succession is faster than primary succession?
1. It has fast growing plants
2. Soil formation is faster
3. Some soil or sediment is already present
4. It does not require water.
Which organisms are affected by the ecological succession?
1. Plants
2. animals
3. Birds
4. All of the above
At any time during succession, natural or human induced disturbances (fire, deforestation, etc.), can:
1. convert a particular seral stage of succession to an earlier stage.
2. create new conditions that encourage some species and discourage or eliminate other species.
3. have no effect on the continuous process of succession.
4. more than one of the above given options are correct.
In Hydrarch succession of plants successional series progress from –
1. Xeric to mesic conditions
2. Hydric to the mesic conditions
3. Hydric to xeric conditions
4. Xeric to hydric conditions.
In Xerarch succession of plants successional series progress from –
1. Xeric to mesic conditions
2. Hydric to the mesic conditions
3. Hydric to xeric conditions
4. Xeric to hydric conditions.
The species that invade a bare area are called as-
1. Seral species
2. Pioneer species
3. Climax species
4. Keystone species
How do Lichens play a vital role in succession?
1. They grow in pollution free area
2. They secrete acids to dissolve rock, helping in weathering and soil formation.
3. They are symbiotic association between fungi and algae.
4. More than one options are correct.
What would be the order of plants in a xerarch succession?
1. Lichens, bryophytes, small annual plants, perennial herbs, grasses
2. Lichens, bryophytes, grasses, perennial herbs
3. Grasses, Lichens, bryophytes, herbs
4. Small annual plants, perennial herbs, grasses Lichens, bryophytes
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