Ecosystem creates
Food chain
Food web
Both the above
None of the above
Which must be preserved in an ecosystem, if the system is to be maintained
To eat and be eaten relationship is called as
Which is not a structural aspect of ecosystem?
Autotrophs
Consider the following four statements $(A-D)$ and select the correct option stating which ones are true $(T)$ and
which ones are false $(F)$.
Statements :
$(A)$ Vertical distribution of different species occupying different levels in a community is called stratification.
$(B)$ Net primary productivity minus respiration losses is the gross primary productivity.
$(C)$ Rate of biomass production is called decomposition
$(D)$ Annual net primary productivity of oceans is $55$ billion tons
(A) | (B) | (C) | (D) |