Because like in the ocean and the fields. In the ocean the shark or whale is probably on top of the food chain. In the wild, a lion is probably on top. Have you ever seen a lion eat a whale or vice versa??? It is because their are different organisms in the different food chains- the tops don't get eaten at all- and they don't eat each other.
Producers
Food webs and food chains are mostly the same
producer.
yes they always begin with plants
A source of Energy.
water food and freindship
Plankton and phytoplankton.
Food chains do not occur often in nature because, many organisms do specialize in their diets.
becuse thay do
A food web
All food chains begin with a producer, typically a plant or algae that can photosynthesize and produce its own food. These producers form the basis of the food chain by converting sunlight into energy that is then consumed by organisms higher up the chain.
because a food chain is based on one certain thing in the ecosystem ....if the entire ecosystem was in it it would be a food web which is food chains from an ecosystem linked together