Question

Give proper term for each of the following: 

(a) Smaller constituent operational unit of biosphere. 

(b) Accumulation of non-biodegradable toxic substance in the increasing order in a food chain.

Answer 1

a. Ecosystem 

It is structural and functional unit of biosphere comprising of both biotic and abiotic components. 

b. Biomagnification 

The phenomenon of increase in concentration of harmful chemicals mainly nonbiodegradable toxic chemicals at every trophic level is called biomagnification.