What are the mistakes in here?
I: Intake F: Feces A: Assimilation (Assimilation=Intake-Feces) R: Respiration P: Production (Production=Assimmilation-Respiration and Production = Intake - Feces - Respiration)
A certain animal has a production efficiency (P/A) of 2%, while his assimilation efficiency is 80%.
1. Calculate the productivity P in KJ if this animal has an energy content of 100 KJ.
I guess you have to multiply the production efficiency with the assimilation efficiency and the energy content: 0.80*0.02*100=1.5 KJ
2. What amount of energy of this animal will benefit a higher trophic level?
I think this is the feces (=Intake-Assimilation) = 20 KJ.