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).