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Plant Ecology — MCQs Biology

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1. Plant ecology deals with the study of:





2. The place where an organism lives is called its:





3. The functional role of a species in an ecosystem is called:





4. A group of plants of the same species living in an area is called:





5. A community consists of:





6. Which is the basic structural and functional unit of ecology?





7. Producers in an ecosystem are mainly:





8. Plants that grow in water are called:





9. Plants adapted to dry conditions are known as:





10. Plants growing in saline soil are called:





11. Plants growing on other plants without harming them are called:





12. An organism that depends on dead organic matter is called:





13. Which factor is a climatic factor?





14. Temperature affects plants mainly by influencing:





15. The study of soil in relation to plants is called:





16. Which soil has the highest water-holding capacity?





17. Plants growing in moderate conditions are called:





18. Which biome has permanently frozen subsoil?





19. The largest terrestrial biome is:





20. Which biome has the highest biodiversity?





21. A stable climax community is formed by the process of:





22. Succession starting on bare rock is called:





23. Succession starting in water is called:





24. The first organisms in primary succession are:





25. Which interaction benefits both organisms?





26. Lichen is an example of:





27. Association where one benefits and the other is harmed is:





28. Plants competing for light show:





29. The movement of plants from one area to another is called:





30. Wind pollination is common in:





31. Adaptations help plants to:





32. Thick cuticle in leaves reduces:





33. Spines in cactus are modified:





34. Which plant is insectivorous?





35. Insectivorous plants usually grow in soils deficient in:





36. Which factor is biotic?





37. Grazing affects plant population by:





38. The green belt around deserts to stop expansion is called:





39. Removal of forests on a large scale is known as:





40. Which gas is absorbed by plants during photosynthesis?





41. An ecosystem with fresh water is called:





42. Producers occupy which trophic level?





43. Energy flow in an ecosystem is:





44. Which component recycles nutrients in ecosystem?





45. Bacteria and fungi mainly act as:





46. A self-sustaining system of organisms and environment is:





47. Which plant shows xerophytic adaptations?





48. Seasonal shedding of leaves is an adaptation to:





49. Which ecological factor controls flowering time in plants?





50. Conservation of natural habitats is important to maintain:





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