The role of a secondary consumer in a food web is Carnivore that feeds on primary consumers. Thus option D is correct.
What is Food web ?
A food web is a pictorial representation of relationship between organisms with their particular environment with respect to their nutrition.
Otherwise it shows the energy flow via ecosystem, also shows the flow concentrated deposition of toxins and pollutants like mercury bioaccumulation
In a food web, organisms are arranged according to their nutrition level called as trophic level. Energy flow through different trophic levels.
Th energy flow starts from the sun to autotrophs as they use sunlight energy to produce food, which will be transferred different organisms of different trophic level.
10% of the energy is transferred from one trophic level to the next trophic level.
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