What is the difference between food chains, food webs, and energy pyramids?

Food chain is when a creature relied on other ones for resources such as food. As the food chain expands, food web is created and began to spread among the species. The food web is the mass of species being dependent to others. And it leads to one species at a time. In other words it connects to each other like a chain. A energy pyramid is when the species bring its energy to another one. The spread of energy increases depending on the size of that creature.

Food chain is a hierarchical series of organism each dependent on the next as a source of food while a food web is a system of interlocking and interpendent food chains. on the other hand, energy pyramid as a graphical model of energy flow in a community.