Most designer drugs are meant to imitate the effects of painkillers. t or f

That statement is False

Designer drugs are analogs of controlled substances that designed to mimic pharmacological effects of the original drugs.

They're meant to imitate the effects of hallucinogen and Narcotics

This is false, just took the test

Unlike  ct scans, which use x-rays,  mri scans  use powerful magnetic fields and radio frequency pulses to produce detailed pictures of organs, soft tissues, bone and other internal body structures.  differences between  normal and abnormal tissue is often clearer on an  mri  image than a  ct.you can see more with a mri scan. for example on an mri you can see internal bleeding.