Q.

Which of the following is known as the structural and functional unit of the environment?

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a

Ecosystem

b

Food web

c

 Food chain

d

Producers

answer is A.

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Detailed Solution

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  • The ecosystem is the structural and functional unit of the environment in which the different biotic and abiotic components interact with each other with respect to their environment. 
  • The food chain is the arrangement of organisms in which organisms at higher trophic level feed on organisms of lower trophic levels.
  • A food web is a network of food chains, in which one organism feeds on many organisms.
  • An autotrophic organism that serves as a source of food for other organisms in a food chain is a producer.
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