A rat feeding upon potato tuber is
Producer
Carnivore
Decomposer
Primary consumer
Given food web contains some missing organisms $A, B, C$ and $D$. Identify these organisms and select the correct answer
The primary consumers in a pond ecosystem are
Which is the correct sequence in the food chain in a grassland
Flow of energy declines from low to higher trophic level in ecosystem, is mainly explained by
In a food web, each successive trophic level has