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(a) Define ecosystem.
(b) Autotrophs are at the first level of food chain. Give reason.
(c) In a food chain of frogs, grass, insects and snakes assign trophic level to frogs. To which category of consumers do they belong to ?

 

 

 

 
 
 
 
 

Answers (1)

a) Ecosystem is the structural and functional unit of ecology as it is a community different living organisms that live in and interact with each other in a specific environment. 

b) As autotrophs are not consumed by any other organisms, that's why they are the first trophic level and they are eaten by herbivores.

c) Frog assign to the Third trophic level of the food chain as it consists of secondary consumers.

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Safeer PP

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