A food web is a model of intersecting food chains.
Most organisms can eat, and be eaten, by many different animals. A food chain wouldnt be able to show this. Food webs show all these connections. They are more complicated but more accurate.
In the African savannah food web shownhere, we can see multiple arrows pointing to different animals. The arrows show the direction the energy is transferred. For example, we can see that zebras eat trees and grasses, so arrows from trees and grasses are pointing to a zebra.
The arrows pointing from the zebra to cheetahs, hyenas, and lions tell us that the zebra is eaten by these animals.
The lions are at the top of the food web, which means they are not eaten by any other type of animal (except by decomposers when it dies). We call this an apex predator.