Abiotic are the nonliving things in an ecosystem such as climate and soil type.
(My mom is in the healthcare facilities) So they use them to keep their logs and to keep track of patients, AND to email people for meds.
After reading the following options, the correct one is the third option, PET scans will use tracers to inject in a vein in someone's arm. Then, the organs as well as tissues will absorb the tracer. This information makes the third option correct because PET scans mostly work with your tissues to see if there are any diseases someone may have in their body.
Hope I helped! :)
Peaculiar
It would be sitting knee bends alternate between right and left slow