Ecosystem Test ...

The primary producers convert how much energy in the sunlight available to them into NPP?

Primary succession starts in an area where ___________________.

Flow of energy is unidirectional in an ecosystem because in each trophic level ______________.

How many statements are correct
(a) Pyramid of biomass in sea is also generally inverted
(b) Pyramid of energy is never inverted
(c) In terrestrial ecosystem a much larger fraction of energy flows through detritus food chain
(d) Humus is highly resistant to microbial action and undergoes decomposition at an extremely slow rate.

Net primary productivity (NPP) in an ecosystem is 

How many statements are incorrect regarding succession?
(A) During succession climax community is always mesophytes
(B) Future seral communities can't be predicted
(C) Increases net community productivity
(D) Increases species diversity, Biomass and humus content.
(E) Gradual replacement from long lived to short lived plant.

In ecological succession the climax community is best recognised by the following state.

How many statements are incorrect regarding succession ? 

Which among the following is not a functional unit of the ecosystem ?

All the statements are correct regarding ecological succession except