producers have the ability to make their own food using an energy source, like the sun. An example of this would be a plant.
Consumers are broken into two groups: primary and secondary.
Primary consumers are the herbivores that eat the producers.
Secondary consumers are the carnivores that eat the primary consumers.
Deer are herbivores and wolves are carnivores; they are both consumers.
So the main difference between producers and consumer are that producers make their own food and consumers can't. They eat producers and other consumers.