NEET Biology question
Study the following ecological pyramids carefully.
Pyramid A (numbers): TC-3, SC-3,54,000, PC-7,08,000, PP-58,42,000 Pyramid B (biomass, upright): TC-1.6, SC-11, PC-37, PP-809 Pyramid C (biomass, inverted): TC-50, SC-38, PC-21, PP-4
Match the following statements (i), (ii) and (iii) with the given pyramids A, B and C and select the correct answer.
(i) Inverted pyramid of biomass depicting a small standing crop of phytoplanktons supporting a large standing crop of zooplanktons (ii) Pyramid of number in a grassland ecosystem showing about 6 million producers (iii) Upright pyramid of biomass
Solution
Pyramid A, a numbers pyramid with about 58,42,000 (≈ 6 million) producers, matches statement (ii); pyramid B, with biomass tapering from 809 at the producer level down to 1.6 at the top, is an upright
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