Write doen a food chain :
(a) in the sea
(b) which ends with humans
(c) with five links in it.

Write an aquatic food chain.

Write the common food chain of a pond ecosystem.

Which food chain is wrong?

Detritus food chain end up on

Write notes on : (i) Food chain (ii) Trophic level.

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 ?