The sea water contains water beetles, tadpole, fish and weeds.
(a) Write a food chain comprising all the given organisms.
(b) Which organisms in the food chain are (i) herbivore, and (ii) carnivores?
(c) Which organisms are (i) predators, and (ii) prey?
(d) Which organisms can trap solar energy to make food?
(e) Which organism is a secondary consumer?

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Solution

(a) Weeds → Tadpole → Water beetle →Fish
(b) (i) The tadpole is a herbivore, and
(ii) the water beetle and the fish are carnivores.
(c) (i) The water beetle and the fish are predators, and
(ii) the tadpole and the water beetle are prey.
(d) Weeds can trap solar energy to make food.
(e) The water beetle is the secondary consumer in the given food chain.

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