P-2 Environmental management — Science STD 10 — Question

(i) An ecosystem consists of many food chains that are interconnected at various levels. This is called food web.
(ii) An organism may be the prey for many other organisms.
(iii) For example, an insect feeds upon leaves of various plants but the same insect is the prey for different animals like wall lizards, birds etc.
(iv) This forms an intricate web instead of a linear food chain. Such an intricate network is called as food web.
(v) Generally food webs are formed everywhere in nature.