Yes, they are as anything can be part of the food chain.
Nuts come from producers, which are the plants, shrubs and grasses in the food chain.
An acorn is the fruit of the oak tree, an oval nut growing in a woody cup.
A macadamia nut.
a ches(nut) is a
A Mekong food chain is a food chain of the Mekong region
Loosen the axle nut and rotate the chain adjuster to the same position on both sides of the swingarm until you obtain the correct chain slack, then tighten the axle nut.
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.
A bear on the top of the food chain.