In this energy pyramid the producers have 90548 Kcal of energy. What is the best estimate of the energy

available for the tertiary consumers?

I chose 100 which is correct but I need an explanation please!!!

this protocol describes a detailed procedure for intracellular flow cytometry staining.

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.  

i might be wrong but i think its a. let me know if i’m right and have a good rest of your day!