InterviewSolution
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InterviewSolution
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The correct sequence of plants in a hydrosere isA. Oak `to` Lantan ` to` Scirpus `to` Pistia ` to ` Hydrilla `to` VolvoxB. Volvox `to` Hydrilla `to` Pistia `to` Scirpus `to` Lantana `to` OakC. Pistia `to` Volvox `to` Scirpus `to` Hydrilla `to` Oak `to` LantanaD. Oak `to` Lantana `to` Volvox `to` Hydrilla `to` Pistia `to` Scirpus |
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Answer» Correct Answer - B (b) The various stages in a hydrosere are well studied in ponds , pools or lakes. The various stages of hydrosere are : (i) Phytoplankton stage ,e.g. some blue-green algae, green algae (Volvox ) , diatoms and bacteria , etc . (ii) Rooted submerged stage , e.g. Hydrilla , Vallisneria etc . (iii) Floating stage e.g. Nelumbo , Nymphaea , etc . Some free floating species are Pistia , Azolla , Lemna , etc . (iv) Red-swamp stage , e.g. species of Scirpus , Typha , etc. (v) Sedge- meadow stage , e.g. species of Cyperaceae and Gramineaa . (vi) Woodland stage , e.g. Lantana , Salix, Populus , etc. (vii) Forest stage, e.g. Trophical rain forests , mixed forests of Almus , Acer , Quercus (oak), trophical deciduous forests. |
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