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Three environmental problems of the Sunderbans are- imbalance in the numbers of prey and predators destruction of mangrove plants due to urbanisation…
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Write one symptom of each of two diseases which might be caused if suspended particulate matter enters into the respiratory tract through…
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Explain the theory of Darwin with regard to the lengthening of the neck of a giraffe. What do you mean by ‘Hot…
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With the help of a checkerboard show the phenotypic ratio of offspring produced in F2 generation as a result of a cross…
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Explain the following three significances of cell division- Growth Repair Reproduction Tabulate the site of occurrences of meiotic cell division in the…
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Write one function of each of the following five parts of the human eyeball: [1 × 5 = 5] (a) Cornea (b)…
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Draw a scientific diagram of the vertical section of a human eyeball and label the following parts: [3+2=5] (a) Choroid (b) Lens…
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Write one role of Joint Forest Management (JFM) and People’s Biodiversity Register (PBR) each for the conservation of biodiversity.
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Write the names of one endangered plant and one endangered animal species of the Eastern Himalayas biodiversity hotspot.
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The invasion of exotic species causes a reduction in biodiversity. Establish the validity of this statement with two examples with reference to…
