It would drasticaly change the inviroment, and would cause most producers to become extinct which would cause the rest of the animals to become extinct too. adventualy every living thing would die out.... (i believe that would happen, so lets hope it never does!)
Well that's a good question it would slowly decrease the population of the living organisms because if the producers ate some consumers that would decrease population by itself but if those consumers die from being eaten then the predators of those consumers would die from hunger. So at the end there would be just a bunch of consumers but then those would die off because they don't have food and some animals help those plants grow but in most cases producers would live on because they don't need animals in a lot of cases.
