 |
| 12th Biology Chapter 26 - Some Major Ecosystems Questions Bank |
Biology 2nd Year Chapter 26 Some Major Ecosystems Solved MCQs, Important Short Questions and Long Questions Bank
MCQs
Please select the right answer.
1. A dominant plant of the deciduous forest is the:
2. A dramatic example of process of desertification is
3. A little light is left to power photosynthesis at the depth of:
4. Annual average rain fall in deserts is less than
5. Annual rainfall in deserts is less than
6. Arctic tundra
7. Arctic tundra stretches across North America, North Europe and:
8. Average rain fall in temperate deciduous forest is
9. Biomass
10. Boreal
11. Cacti and Euphobia plants are found in;
12. Cacti and Euphorbia are desert plants which store water in their
13. Cacti and Euphorbias are the plants of
14. Cacti and Euphorbla are the deserts plants which store water in their
15. Climate
16. Coniferous forest
17. Coniferous forests located at high altitude are
18. Coniferous forests of high altitude are known as
19. Decomposer
20. Desert ecosystem of Mianwali and Bhakkar is called:
21. Deserts generally occur in region where annual rain fall is less than
22. Deserts generally occur in region where annual rainfall is less than:
23. Distribution of biomes on earth is primarily due to pattenrs of
24. Drifting or floating micro scoping animal and plants are called:
25. Ecosystem
26. Ecosystem present on Land or Soil is called
27. Felis begalensis is the Zoological name of
28. Fresh water ecosystem covers fess than
29. Fresh water ecosystem covers less than
30. Gobi desert is found in
31. Grassland in tropic climates have woody trees and are called
32. Grasslands in temperate climates are called
33. Herbivores
34. In aquatic ecosystem, near shore zone is called
35. In Sindh the desert ecosystem is called:
36. In temperate grassland the rate of primary production is about
37. In temperate grassland, the rate of primary production is:
38. In which type of ecosystem is the smallest fraction of nutrients present in soil
39. In which type of ecosystem, the smallest fraction of nutrients is present in soil?
40. Layering s the characteristic of
41. Lichen
42. Limnetic phytoplanktons include
43. Limnetic phytoplanktons include the:
44. Limnetic zone
45. Littoral zone
46. Most plants fit only into a few ecosystems, which type of plant seems in ecosystem of grassland
47. Mountains of Karakorum and Hindukush are the region , also called as
48. Northern coniferous forest are called
49. Northern coniferous forests are called
50. Phytoplankton
51. Phytoplanktons are drifting:
52. Primary consumer
53. Primary consumer animals may also be called as
54. Primary producer
55. Profundal zone
56. Saltwater ocean and sea being the largest ecosystems on earth occupy about what percentage of its surface.
57. Thal
58. The average annual rain fall of temperate deciduous forests is between
59. The average temperate deciduous forest is between:
60. The dominant plants of grasslands are
61. The earth’s climates are primarily effected by the circulation pattern of
62. The largest desert in the world is
63. The Macaca mulatto is biological name for;
64. The productivity can be indicated by:
65. The rate of primary production is about 700-1500 gm/m2 annually in:
66. The Sahara desert is found in
67. The scientific name for rhesus monkey is
68. The soil of grass-land is basically impermeable with excessive:
69. The soil of terrestrial ecosystems have some adaptations for animals and plants
70. The zone of deep standing water under the limnetic zone is known as
71. The zoological name of leopard cat is:
72. What biome will be with richest soil with nutrients and can be converted into agriculture?
73. What is the annual rate of primary production in temperate grassland?
74. Which biome is characterized by plants that lose their leaves each autumn?
75. Which biome supports the greatest species diversity?
76. Which biome supports the least species diversity?
77. Which ecosystem is divided into littoral, limnetic and profundal zones?
78. Which of the biomes has been increased in area by human activities?
79. Which of the following biomes is increased by human activities:
80. Which of the following is the most fragile ecosystem?
81. Which of the followings is an essential requirement for life?
82. Which of the followings is not correctly matched?
83. Which one is a plant of a desert?
84. Which one is not a desert?
85. Which one is not a forest ecosystem?
86. Which one is not correct for littoral zone?
87. Which one is not desert?
88. Which one is not related with process of eutrophication?
89. Which one is not related with Tundra?
Short Questions
1. Beyond which depth of even clearest water can photosynthesis not take place on account of very little light?
2. Can you differentiate between altitude?
3. Classify aquatic ecosystem?
4. Define productivity of an ecosystem.How is it indicated?
5. Define zooplankton?
6. Describe animal life of Grassland ecosystem.
7. Describe weather?
8. Differentiate among littoral, limnetic and profundal zone. Characterize littoral zone of fresh water lakes. What is limnetic zone mention its life.
9. Differentiate between Alpine and Boreal forests?
10. Differentiate between climate and weather. What is climate?
11. Differentiate between phytoplankton and zooplankton?
12. Differentiate between Prairies and Savanna.
13. Differentiate between thal and thar.
14. Differentiate between weather and climate?
15. Differentiate between Zooplankton and Phytoplankton.
16. Enlist the decomposers and detritus feeders of the profundal zone of lakes?
17. Enlist two adaptations in plants and two in animals for a terrestrial ecosystem. Give two adaptations of terrestrial ecosystem.
18. Enumerate the characteristics of the soil in temperate deciduous forests?
19. Explain littoral zone of water.
20. Give an explanation of profundal zone of water.
21. Give location of Tundra ecosystem in Pakistan.
22. Give the name of some major ecosystem on land in Pakistan?
23. How is the earth’s surface divided into fresh water, marine water and land?
24. How is the profundal zone associated with the littoral and limnetic zones?
25. How many biomes are present in the world name only five of them?
26. How many regions open water area is divided into?
27. In what climatic conditions are found the temperate deciduous forests?
28. List adaptations in plants and animals for terrestrial ecosystem?
29. Mention the characteristics of plant life in desert ecosystem.
30. Name six major terrestrial biomes.
31. Name some grasslands of Pakistan?
32. Name some predators of grassland?
33. Name the main factors of the aquatic ecosystem that determine the quantity and quality of life?
34. Name the organisms of limnetic phytoplankton?
35. Name the plants of coniferous alpine and boreal forosts?
36. Name the plants of temperate deciduous forest?
37. Name the sub-divisions of forest ecosystem?
38. Name the two main and basic kinds of ecosystems in the world?
39. Name the zones of eth standing water bodies such as lakes?
40. Name three zones in lake ecosystem?
41. What are Characteristics of littoral Zone?
42. What are plankton?
43. What are Prairies?
44. What are the four major requirements for life? Which two are limiting factors in terrestrial ecosystem?
45. What are the four major requirements for life?Which two are limiting in terrestrial ecosystem?
46. What are the kinds of coniferous forests and where are they located?
47. What are the supporting structures of land plants and animals?
48. What do you know about the animal life of coniferous alpine and boreal forests?
49. What does climate mean?
50. What is desertification?
51. What is hydrospheric or aquatic ecosystem?
52. What is Layering in ecosystem?
53. What is limnetic zone of the lake?
54. What is lithspheric ecosystem?
55. What is meant by layering in a grassland ecosystem? Give the layering characteristics of grassland.
56. What is plankton? What are its kinds?
57. What is profundal zone? Give its one character. What type of organisms are present in profundal zone of lake?
58. What is Savanna?
59. What is Taiga?
60. What is the annual Rain fall in grasslands?
61. What is the composition of air of terrestrial ecosystem?
62. What is the effect of human impact on Desert ecosystem?
63. What is the effect of human impact on Tundra ecosystem?
64. What is the field layer of temperate deciduous forests comprised of?
65. What is the location of coniferous alpine and boreal forests?
66. What is the location of deserts in pakistan?
67. What is the location temperate deciduous forests in Pakistan and rest of the world?
68. What is the productivity of grassland ecosystem?
69. What is the range of rainfall and temperature in Temperate Deciduous Forest Discuss animal life of temperate deciduous forest?
70. What is the range of Rainfall and temperature in temperate deciduous forest?
71. What is tundra?
72. What trees and animals are common in moist temperate regions of Shogran and Neelam valleys of Azad Kashmir in Pakistan?
73. What type of animals are present in temperate decicuous forest?
74. What types of animal life if present in tundra?
75. What types of organisms are present in profundal zone of lake?
76. What types of Plant life is found in tundra?
77. Where are nutrients concentrated in the aquatic ecosystem and why?
78. Where the Desert ecosystem is found in Pakistan.
79. Which factors affect life, specially on land?
80. Which invertebrate and vertebrate animals are found in the littoral zone of the lake?
81. Which organisms are found in the phytoplankton and zooplankton of the littoral zone of lakes?
82. Which structures of plants and animals help them regulate body temperature?
Long Questions
1. Give an account of desert ecosystem.
2. Write a note on Tundra ecosystem.