[5] (a) What is a trophic level in an ecosystem ? What is 'standing crop' with reference to it ? (b) Explain the role of the 'first trophic level' in an ecosystem. (c) How is the detritus food chain connected with the grazing food chain in a natural ecosystem ?

[5] (a) What is a trophic level in an ecosystem ? What is 'standing cr

1.	[5] (a) What is a trophic level in an ecosystem ? What is 'standing crop' with reference to it ? (b) Explain the role of the 'first trophic level' in an ecosystem. (c) How is the detritus food chain connected with the grazing food chain in a natural ecosystem ?
Answer» [5] (a) What is a trophic level in an ecosystem ? What is 'standing crop' with reference to it ? (b) Explain the role of the 'first trophic level' in an ecosystem. (c) How is the detritus food chain connected with the grazing food chain in a natural ecosystem ?