You will learn and practice how to: 1  determine thunderstorm base, top, and the trigger needed to get the storm started. 2  identify the boundary layer, cap, troposphere, tropopause, and stratosphere. 3  use the thermo diagram to help calculate various humidities. 4  determine temperature change of vertically moving air parcels.
The term ''immediate precursor'' means a substance 1  -. (A) which the Attorney General has found to be and by regulation designated as being the principal compound used, or produced primarily for use, in the manufacture of a controlled substance; (B) which is an immediate chemical intermediary used or likely to be used in the manufacture of such controlled substance; and.
Thus the direct precursor of norepinephrine is dopamine, which is synthesized indirectly from the essential amino acid phenylalanine or the non-essential amino acid tyrosine. These amino acids are found in nearly every protein and, as such, are provided by ingestion of protein-containing food, with tyrosine being the most common.