If one part of food web becomes inactive, the whole food web will be inactive soon.
False
Food web is a complex interconnection of many food chains. In a food web, animals can always find another source of food to survive. Hence, if one part of food web becomes inactive, the whole food web will not necessarily become inactive. The statement will hold true for a single food chain as one animal is dependant on another and inactivation of part of this food chain will inactivate the remaining part of the food chain also.