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Which of the following ecological food chains does not represent an erect pyramid of numbers? (a) Grass–Rodent–Snake (b) Tree–Bird–Avian parasite (c) Grass–Deer–Tiger (d) Insect–Chicken–Human Select the correct answer from above options Science questions and answers, Science questions pdf, Science question bank, Science questions and answers pdf, mcq on Science pdf,Science book pdf,Science pdf notes,Science lecture notes,Science of light,maxwell Science,Science proposed by,electromagnetic theory engineering physics,Science nptel

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Answer is : (b) Tree–Bird–Avian parasite Tree–Bird–Avian parasite does not represent an erect pyramid of number. Instead, it is an inverted pyramid of number. All ecological pyramids of number are erect except in parasitic food chain, where one primary producer supports numerous parasites which further support more hyperparasites.

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