Which organisms are affected by the ecological succession?

1. Plants

2. animals

3. Birds

4. All of the above

Subtopic:  Ecological Succession (OLD NCERT) |
 94%
From NCERT
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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.

Subtopic:  Ecological Succession (OLD NCERT) |
 60%
From NCERT
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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.

Subtopic:  Ecological Succession (OLD NCERT) |
 91%
From NCERT
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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.

Subtopic:  Ecological Succession (OLD NCERT) |
 93%
From NCERT
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Which term represents the medium water condition?

1. Xeric

2. Hydric

3. Mesic

4. Metic

Subtopic:  Ecological Succession (OLD NCERT) |
 80%
From NCERT
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The species that invade a bare area are called as-

1. Seral species

2. Pioneer species

3. Climax species

4. Keystone species

Subtopic:  Ecological Succession (OLD NCERT) |
 94%
From NCERT
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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.

Subtopic:  Ecological Succession (OLD NCERT) |
 62%
From NCERT
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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

Subtopic:  Ecological Succession (OLD NCERT) |
 52%
From NCERT
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In Hydrarch succession, the order of plant groups is-

1. Rooted-submerged plants, Phytoplanktons, rooted-floating angiosperms, reedswamp, scrub marsh-meadow,

2. Phytoplanktons, rooted-submerged plants, rooted-floating angiosperms, reedswamp, marsh-meadow, scrub

3. Phytoplanktons, rooted-submerged plants, rooted-floating angiosperms, scrub, reedswamp, marsh-meadow,

4. Phytoplanktons, rooted-floating angiosperms, rooted-submerged plants, reedswamp, marsh-meadow, scrub

Subtopic:  Ecological Succession (OLD NCERT) |
 79%
From NCERT
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In hydrarch succession, after the climax community is established, water body is converted into-

1. Pond

2. Land

3. Swamp

4. None of the above

Subtopic:  Ecological Succession (OLD NCERT) |
 68%
From NCERT
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