$A$ food chain consists of:

Omnivores feed on members of which trophic levels?

$A$ food web:

Find an incorrect statement for $DFC$ (Detritus Food Chain).

Name an omnivore which occurs in both grazing food chain and the decomposer food chain.

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.