If there is 87,000 kJ of energy at the producer level, list how much energy will be at primary consumer level?

The largest amount of energy is in the first trophic level – the producers (plants). Because of this, there are usually more producers than primary consumers

Explanation:

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.