Major Ecosystems Biology FSC MCQs


FSC Biology MCQs Part 1 bio Part 2 HSSC Pre Medical Book Questions first year and second-year bio mcqs

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Weather refers to
A. Short-term fluctuations in temperature, cloud cover, wind and precipitation B. It prevails over periods of hrs or days
C. Overall patterns of weather that prevail from year to year D. Both a and b
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[explanation]d[/explanation]
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Which statement about hydrospheric ecosystem is incorrect?
A. Salt water ocean and sea are the largest ecosystems on earth B. Salt water ecosystem covers about 75% earth surface
C. Fresh water ecosystem covers less than 1% of earth surface D. It temperature is more moderate to support life
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[explanation]b[/explanation]
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Which statement about profundal zone is correct?
A. Plants are unable to anchor but enough light penetrates to support photosynthesis B. Phytoplanktons in this region are cyanobacteria
C. Decomposers and detritus feeders inhabit it D. Water lilies are abundant
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[explanation]c[/explanation]
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Eutrophication is
A. Process of decreasing nutrients by human activities B. Adequate nutrition accelerated by human activities
C. Changing the trophic levels of an ecosystem by human activities D. Addition of more predators in an ecosystem
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[explanation]b[/explanation]
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Which statement is incorrect?
A. Average rainfall in temperate deciduous forests is 750-1500mm B. Temperature of coniferous alpine and boreal forests is upto 10 degrees
C. Northern coniferous forests are called Taiga D. Coniferous forests located at high latitude are alpine
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[explanation]d[/explanation]
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Coniferous forests located at high altitude are called
A. Taiga B. Alpine
C. Boreal D. Arctic
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[explanation]b[/explanation]
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Ecosystem of Shogran is
A. Coniferous alpine B. Boreal
C. Temperate deciduous D. Grassland
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[explanation]c[/explanation]
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End of earth’ is related to
A. Tropical rain forest B. Temperate deciduous forest
C. Savanna D. Tundra
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[explanation]d[/explanation]
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Annual rainfall in deserts is less than
A. 150-200 mm B. 500-700 mm
C. 250-500 mm D. 700-800mm
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[explanation]c[/explanation]
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Treeless tundra of high latitude between taiga and polar ice caps is called
A. Northern tundra B. Antarctic tundra
C. Arctic tundra D. Polar tundra
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[explanation]c[/explanation]
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