Question

If a big fish eats small fish which in turn eat hydra, who in turn eats water fleas. Phytoplankton are being eaten by water fleas. In this food chain water fleas will be

• A. secondary consumer
• B. producer
• C. primary consumer
• D. top consumer

Answer 1

The correct option is C primary consumer

Food chain is the sequential arrangement of organisms on the basis of who eats whom. In each food chain every organism is dependent on other organisms for food except for the producers; thus energy flow in a food chain is in the form of food.
In the given food chain water fleas are directly dependent on phytoplanktons which are producers, thus water fleas are considered to be primary consumers.