$A$ person who eats vegetables acts as a:

If less light falls on the pond's surface,what is the most likely consequence for the fish population?

Sparrow eats seeds. Afterwards,it eats insects. In which trophic level does the sparrow belong in both situations,respectively?

Ecological succession is a

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.

Which of the following statements is incorrect?