What are consumers?
and what do they do?

Ecosystems have lots of different living organisms that interact with each other. There are 3 main organism that make up the ecosystem. These are producers, consumers and decomposers.

Consumers are different species that get their energy from the producers or from organisms that eat producers.  

There are 3 types of consumers which eat different producers. These are orbivores, carnivores, and herbivores.