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12 Biology Ecosystem - Set No : 5 Question No :10

Question No : 10
               Consider the succession of plantsI. In hydrarch succession series progress from hydric to the mesic conditionII. In xerarch succession series progress from xerarch to the mesic conditionIII. In xerarch succession if it is started on bare rock the pioneer species is lichensIV. In hydrarch and xerarch succession series progress from mesarch to xerarch conditionWhich of the following is correct combination match from above statements?Choose the correct option     

                a)          II and III          b)          III and IV     

                c)          II and IV          d)          I, II and III     

Answer No : 10
     (d)In both hydric and xerharch succession ultimately lead to mesarch conditions. The pioneer species on bars rock is always lichen     

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