In an ecosystem, the largest population is of
Producers
Consumers
Decomposers
Omnivores
Given food web contains some missing organisms $A, B, C$ and $D$. Identify these organisms and select the correct answer
If forest area is reduced to half, which one of the following will be a long term effect
In a food web, each successive trophic level has
Major conduit of energy in land and aquatic ecosystem is transferred through ______ and ______ respectively.
Secondary productivity is