There are more producers than herbivores or carnivores in an
ecosystem community. When an herbivore eats a plant, only some
of the plant’s energy becomes part of the herbivore’s body. The rest
is lost as waste or heat. Also, when a carnivore eats another
animal, only some of that energy becomes part of the carnivore’s
body. The amount of energy that gets passed along from the
original producer becomes less and less as you move up a food
chain.