- 1(current)
Q. No.Identify the correct statements:
1. Only II
2. Only III
3. Only II and III
4. Only I
| I: | Primary succession is faster than the secondary succession |
| II: | Both hydrarch and xerarch successions lead to mesic conditions |
| III: | Rooted submerged plants are pioneers in primary hydrarch succession |
1. Only II
2. Only III
3. Only II and III
4. Only I
Subtopic: Ecological Succession |
70%
From NCERT
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Identify the correct statements:
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
| I. | Pioneers in primary xerarch succession are lichens |
| II. | Pioneers in primary hydrarch succession are phytoplanktons |
| III. | Secondary succession is slower than primary succession |
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
Subtopic: Ecological Succession |
79%
From NCERT
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Which of the following statements regarding ecological succession is/are true?
| I. | The change in communities during ecological succession is orderly and sequential, parallel with the changes in the physical environment. |
| II. | Secondary succession is faster than primary succession. |
| III. | Usually, lichens are pioneer species during primary xerarch succession. |
| 1. | Only I |
| 2. | Only II |
| 3. | Both I and III |
| 4. | I, II and III |
Subtopic: Ecological Succession |
87%
From NCERT
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Match each item in Column I with one in Column II and choose the correct option from the codes given below:
| Column I | Column II | ||
| A. | Primary Succession | P. | Takes place in dry areas and the series progress from xeric to mesic conditions |
| B. | Secondary Succession | Q. | Occurs in areas like newly cooled lava, bare rock, newly created ponds or reservoirs and is generally slow |
| C. | Hydrarch Succession | R. | Takes place in wet areas and the series progress from hydric to mesic conditions |
| D. | Xerarch Succession | S. | Occurs in areas where natural biotic communities have been destroyed like abandoned farmlands, burned or cut forests, lands that have been flooded and is faster |
| A | B | C | D | |
| 1. | Q | S | R | P |
| 2. | S | Q | P | R |
| 3. | P | R | Q | S |
| 4. | R | P | S | Q |
Subtopic: Ecological Succession |
92%
From NCERT
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Q. No.
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