Most animals can't be separated from the bacteria living in them so this isn't possible but if you could populate a closed off space with only plants and animals that could be eaten whole, dead or...
The answer is NO!!!!! Decomposing is the last stage of the "energy cycle". Without decomposition, there would be no end! the balance would be off by about 64%.
Well, if people only ate food, never grew it or raised it or gathered it, would that work? Producers are necessary as the foundation of the ecosystem. They create the energy that consumers and...