What is the longest known food chain?

Bacteria in Feces, Plants, Caterpillar, Spider, Wasp, Bird, Cat, Bear, Hunter, Parasite.

I got 10, what can the next person get? :D

To answer the second part of your question:

I’m unsure, I just thought mine up.

Source: Bio major.

(What eats the parasite, more bacteria?)

human, septic system leach line yeasts, bacteria, protozoan, worms, nitrogen fixing plant, deer, human OR worms, bird, cat, fox, coyote, human.
“And go round and round and round in the circle game.”

amoeba?

Fast food chain? * smiles* White Castel, right? Around 1919 or so I think. ( I know I know- just having fun)