What are the components needed for a full ecological community to be successful?

Explanation:

A community structure is define by the diverse organism present and the various number of species.

A community requires both biotic and abiotic factor to form a good structure.

Base population is needed - this are the primary producer, that transfer energy to other organism in the environment. The produce their food themselves.

Consumers - consumers feeds on producers, herbivores animals feeds on producer/plant while carnivores feeds on herbivores. Energy is then transfer when they chemical reaction takes place via the food comes

Decomposer - They act on the dead and remains of plant and animal. They help release nutrient back into the soil. Example of decomposer is earth worm.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

what's the question ?