I want to know the longest food chain in the world....
Answers
They can't practically be as long as you want because alot of energy is lost as heat as energy is transfered up the food chain, and also that fluctuating productivity levels of the whole ecosystem are maginfied up through the ecosystem, which makes it harder for top level predators. Eventually there is so little energy left, and it is often lost in draughts, seasonal migrations, etc, that species living off those below have little chance of survival. I think around 4 or 5 levels is the upper limit. It's also important to remember that omnivores, parasites, scavengers, detritivores, etc all complicate matters.
Answer:
1) phytoplankton are eaten by 2) zooplankton, which are eaten by 3) small shrimps, which are eaten by 4) small fish (many species), which are eaten by 5) larger fish (many species), which are eaten by 6) sharks, which are eaten by 7) humans.
Explanation: