A) biotic and abiotic
B) plants and animals
C) weeds and micro-organisms
D) plants and light
Correct Answer: A
Solution :
Ecosystem is made up of living and non-living components, known as biotic and abiotic component respectively. The term ecosystem was first used by Tansley in 1935. [a] Biotic component-They constitute all the living members of an ecosystem. The different biotic components are connected through food and a number of other relations, eg, food chain (producers consumers etc). [b] Abiotic component-They constitute all non-living substances and factors, eg, temperature, light, wind etc.
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