In a natural ecosystem, a variety of producers (green plants) provide food for primary consumers (herbivores) that are preyed upon by secondary consumers, (carnivores and omnivores.)
(a variety of producers; provide; food; for primary consumers; L:In a natural ecosystem) (primary consumers; are preyed; upon; by secondary consumers)
a variety of producers primary consumers
provide are preyed
food for primary consumers L:In a natural ecosystem
upon by secondary consumers