A food chain is not something concrete like a rope, and as such it doesn't really have a function. It's a way of summarising some of the feeding relationships between organisms.
molds is decomposer
all animals balace out the food chain or a specific ecosystem
Just like any animal its function is to be part of a food chain.
what are the function of chain banking
it decomposes dead animals or plants
consumer
A Mekong food chain is a food chain of the Mekong region
food chain of a eagle
food chain on land
what is a monkeys food chain
arboreal food chain
Because they use the word 'chain' as a type of metaphor. They use chain as a metaphor because the food keeps on going on and on, as does a chain.