No.
Both.
Morphine can stay in your blood stream from two to five days depending on the dosage size taken.
pumping blood and gives morphine
no
Level 6
The eel.
The kidney filters all toxic substances out of the blood and the toxic substances, as well as some excess water, is turned into waste. (and i think you know what "waste" is)
No
Not at all no worries. But it can and will in a blood test of any sort.
Heroin is essentially an "armored" form of morphine, protected at the blood-brain barrier by diacetyl radicals. Brain chemicals known as endophins have the same effect as morphine, but differ slightly in chemical composition.
The kidneys.