It displays the succeeding and increasing form of number while pyramid of energy displays how energy is transferred (as it reduces) from one organism to another.
10 percent rule
Food chain refers to a process cycle from producer to consumer to decomposer.
Plants – herbivores – omnivores – carnivores Start -> Plants -> herbivore insect -> spiders -> small bird -> Snake -> hawk -> fox -> lion -> when died the body will be eaten by hyena-> when hyena died -> body get decompose and be eaten by worms and the rest will be plant’s fertilizer.
The process of the food chain will then again takes place over and over again.