A) food chain
B) ecological pyramid
C) food web
D) None of the above
Correct Answer: C
Solution :Food web is a network of food chains which become interconnected at various trophic levels so as to form a number of feeding alternatives amongest the different organisms of a biotic community. Food web is meant for increasing the stability of an ecosystem by providing alternate source of food and allowing the endangered population to grow in size. Food chain is a sequence of organisms of an ecosystem through which the food and its contained energy passes with each member becoming the food of a later member of the sequence. Pyramid is a graphical representation of an ecological parameter like number of individuals present in various trophic levels of a food chain with producers forming the base and top carnivores the tip.
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