Select the mismatched pair in the following and correct it.

(a) Bio-magnification — Accumulation of chemicals at the successive trophic levels of a food chain

(b) Ecosystem — Biotic components of environment

(c) Aquarium — A man-made ecosystem

(d) Parasites — Organisms which obtain food from other living organisms

 

Answer:

Checking the options:

  • (a) Bio-magnification: Accumulation of chemicals  at the successive trophic levels of a food chain - Correct
  • (b) Ecosystem: Biotic components of environment - Incorrect
  • (c) Aquarium: A man-made ecosystem - Correct
  • (d) Parasites: Organisms which obtain food from other living organisms - Correct

Option (b) is incorrect as an ecosystem constitutes both biotic and abiotic components of the environment.

So, the correct answer is (b).

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CA Maninder Singh is a Chartered Accountant for the past 14 years and a teacher from the past 18 years. He teaches Science, Economics, Accounting and English at Teachoo