The similarity in molecular shape allows morphine to bind to endorphin receptors.
Substance P
endorphins looked in my book :)
increased by heroin use and increased by vigorous exercise
Erythrocytopenia
No, there are no positive effects from smoking tobacco.
glucose, Sugar
it will stop the joints from growing
yes it its, i did my homework
Several months - even then if an examiner is looking specifically for it they may find metabolites of the drug.
recycle nutrients
The tonsils are apart of the lymphatic system. They aid in the bodys ability to fight germs.
Water.