1.

What is necessary to convert this picture into food web ? Why ?

Answer»

Solution :a. For converting the above food chain into food web, more animals or links that MAY be present in the terrestial ecosystem need to be added, e.g., BLUEBIRD , rabbit, rat,deer, tiger,etc.
b. It is necessary to include these animals because food web is an intricate network of food CHAINS which are interconnected at variouslevels.
c. For instance, if we include rat, it would be a food source for snake as WELL as eagle. Similarly, if we includea bluebird, it would feed on grasshopper and the bluebird is eaten by a hawk.
d. Thus, the food chain GETS inter-connected at various levels, forming a intricate web instead of linear chain.


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