Food Web:

Within an ecosystem,  there are many different food chains. Some organisms may be involved in several of the food chains at the same time. So a number of food chains become interwoven into a food web, that may be very complex. The term food web is often used to describe more accurately,  the actual feeding relationship within a given  ecosystem. In a forest,  if deer become rare or get wiped out by  a disease or any natural  . calamity, the predator, such as lion, can feed on other animals such as fox, wolf. crane etc. rill  the usual prey animals are availublt again . In brief', we can say that many intterlocking fuud chains make it possible for rhr living beings to survive rninor or major setbacks and changes in  their surroundings. Thus, interlocking food chains provide stability to the ecosystem.