Yes they will show as same.
Does just morphine show up in a 7 panel drug test?
Depends on the sophistication of the test but probably the same. Methadone will not register the same.
The heroin and morphine both are narcotics. Although their half life is not more than 3 hours, but complete elimination take place after 3 days. But in hair follicle stay long. Because it takes time to reach in hair follicle. The hair follicle is located in sebaceous gland in epidermis. The drugs first enter in to dermis and then in epidermis. From here it takes 4 weeks to reach in outer layer of epidermis. So, excretion of drugs and alcohol takes 90-100 days to be excreted.