NEET 2020 · BiologyPrevious Year Question

Match the trophic levels (grassland ecosystem) in Column I with the correct species in Column II: Column I (a) First trophic level (b) Second trophic level (c) Third trophic level (d) Fourth trophic level Column II (i) Crow (ii) Vulture (iii) Rabbit (iv) Grass Select the correct option:

Answer: (C) a-ii, b-iii, c-iv, d-i. Answer: (C) Grass is the producer (first trophic level = iv), Rabbit is the herbivore/primary consumer (second trophic level = iii), Crow is a secondary consumer (third trophic level = i), and Vulture occupies the fourth trophic level (ii).

  1. A.a-iv, b-iii, c-ii, d-i
  2. B.a-i, b-ii, c-iii, d-iv
  3. C.a-ii, b-iii, c-iv, d-i
  4. D.a-iii, b-ii, c-i, d-iv

Correct Answer

(C) a-ii, b-iii, c-iv, d-i

Solution & Explanation

Answer: (C) Grass is the producer (first trophic level = iv), Rabbit is the herbivore/primary consumer (second trophic level = iii), Crow is a secondary consumer (third trophic level = i), and Vulture occupies the fourth trophic level (ii). Matching the labels: a(fourth)-ii, b(second)-iii, c(first)-iv, d(third)-i = option (C). NCERT Reference: Ch 12, p.210 — “carnivores (secondary consumer) to the third”

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