Trevor tells his colleagues that there are five types of potentially harmful organisms. Which is not considered a type of potentially harmful organism, in the context of infection control?
MRSA
bacteria
biofilms
parasites

Pe.dometer would be the most useful to you for monitoring heart rate.

The answer is epidermis

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.