MCQOPTIONS
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MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is the correct sequence of xerarch succession? |
| A. | Forest → Shrubs → Herbs → Mosses → Lichens |
| B. | Shrubs → Herbs → Mosses → Forest → Lichens |
| C. | Lichens → Mosses → Herbs → Shrubs → Forest |
| D. | Lichens → Mosses → Shrubs → Forest → Herbs |
| Answer» D. Lichens → Mosses → Shrubs → Forest → Herbs | |
| 2. |
What will happen to biomass in an ecological succession from pioneer to climax community? |
| A. | Increase and the decrease |
| B. | Increase |
| C. | Decrease |
| D. | Become zero |
| Answer» B. Increase | |
| 3. |
In a plant succession, which is the last stabilized community? |
| A. | Pioneer community |
| B. | Seral community |
| C. | Ecosphere |
| D. | Climax community |
| Answer» E. | |
| 4. |
Xerarch succession is observed in which of the following area? |
| A. | Terrestrial area |
| B. | Desert area |
| C. | Aquatic area |
| D. | Marshy area |
| Answer» C. Aquatic area | |
| 5. |
What are pioneers? |
| A. | The organisms of the second seral stage |
| B. | The organisms of the third seral stage |
| C. | The organisms of the first seral stage |
| D. | The organisms of the fourth seral stage |
| Answer» D. The organisms of the fourth seral stage | |
| 6. |
Who replaces the shrub stage in a xerarch succession? |
| A. | Herbs |
| B. | Forest |
| C. | Lichens |
| D. | Mosses |
| Answer» C. Lichens | |
| 7. |
Who replaces the herbaceous plants in a xerarch succession? |
| A. | Angiosperms |
| B. | Lichens |
| C. | Shrubs |
| D. | Forest |
| Answer» D. Forest | |
| 8. |
Who replaces the mosses in a xerarch succession? |
| A. | Angiosperms |
| B. | Reptiles |
| C. | Shrubs |
| D. | Herbs |
| Answer» E. | |
| 9. |
In a xerarch succession, who helps in weathering and soil formation? |
| A. | Mosses |
| B. | Herbs |
| C. | Lichens |
| D. | Shrubs |
| Answer» D. Shrubs | |
| 10. |
In a xerarch succession, who secrete acids to dissolve rock? |
| A. | Shrubs |
| B. | Herbs |
| C. | Mosses |
| D. | Lichens |
| Answer» E. | |
| 11. |
Who replaces the lichens in a xerarch succession? |
| A. | Herbs |
| B. | Mosses |
| C. | Shrubs |
| D. | Forest |
| Answer» C. Shrubs | |
| 12. |
Who acts as a pioneering species in a xerarch succession? |
| A. | Phytoplankton |
| B. | Pteridophytes |
| C. | Lichens |
| D. | Bryophytes |
| Answer» D. Bryophytes | |
| 13. |
What is the sequence of successional stages occurring on bare rocks called? |
| A. | Biological succession |
| B. | Ecological succession |
| C. | Hydrarch succession |
| D. | Xerarch succession |
| Answer» E. | |
| 14. |
What are conditions having too much hydration called? |
| A. | Mesic |
| B. | Hydric |
| C. | Mesozoic |
| D. | Xeric |
| Answer» C. Mesozoic | |
| 15. |
What are conditions having too much dryness called? |
| A. | Xeric |
| B. | Hydric |
| C. | Mesic |
| D. | Mesozoic |
| Answer» B. Hydric | |
| 16. |
What is a medium water condition called? |
| A. | Mesozoic |
| B. | Mesic |
| C. | Hydric |
| D. | Xeric |
| Answer» C. Hydric | |