Red Box - The tertiary consumer is the top consumer on an energy pyramid and has no predators.
Blue Box - Carnivores which eat omnivores, herbivores, and sometimes other carnivores.
Green Box - Omnivores which eat both plants and animals.
Orange Box - Herbivores which get their energy from plants.
Purple Box - The primary producers which provide food for the herbivores.
Black Box - The abiotic factors which keeps the energy pyramid/ecosystem functional.