The Final Demand-Intermediate Demand (FD-ID) system replaced the Producer Price Index (PPI) Stage-of-Processing (SOP) system as PPIs primary aggregation system with the release of data for January 2014. The FD-ID system expands coverage beyond that of the SOP system through the addition of services, construction, exports, and government purchases.
Ammonia Levels. Ammonia Levels. Ammonia smell in urine means possible health dangers, especially to rabbits. But here's a way to reduce or eliminate ammonia fumes and levels safely and easily.mmonia Levels. Ammonia smell in urine means possible health dangers, especially to rabbits. But here's a way to reduce or eliminate ammonia fumes and levels safely and easily.
We shall see that the form of nitrogenous waste an animal excretes depends on both the animal's evolutionary history and its habitat. Ammonia Most aquatic animals excrete NITROGENOUS WASTES. as ammonia. Ammonia molecules are small and very Figure 40.15 NITROGENOUS WASTES ..Ammonia is a toxic by-product of the metabolic removal of nitrogen from proteins and nucleic acids.Most aquatic animals get rid of ammonia by excreting it in very dilute solutions.e shall see that the form of nitrogenous waste an animal excretes depends on both the animal's evolutionary history and its habitat. Ammonia Most aquatic animals excrete NITROGENOUS WASTES. as ammonia. Ammonia molecules are small and very Figure 40.15 NITROGENOUS WASTES ..