We know that about 50% of the energy in an organism is not digested by the consumer and is simply passed through as waste or feces. Is the energy stored in the feces lost to the
ecosystem? Why or why not?

Select the correct answer from each drop-down menu. the lac operon in e. coli regulates genes that code for enzymes required for breakdown of lactose. the lac operon is operon that is activated in the presence of .