What is the main difference between a producer and a consumer? give an example to support your answer

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.