Question

The sea water contains water beetles, tadpoles, fish and weeds.​
Which organisms are (i) predators, and (ii) prey?​

Answer 1

• With the organisms given in the question, following will be the food chain in action:​
• Weeds $\to$ Tadpoles $\to$ Water beetles $\to$ Fish​

(i) Predators in this food chain are water beetles and fish. Water beetles eat tadpoles i.e. they prey on tadpoles. Fish eats water beetles i.e. it preys on water beetles​
(ii) Prey in this food chain are tadpoles and water beetles. Tadpoles are eaten by water beetles and water beetles are eaten by fish.​