Blood is blue before it reaches oxygen. this is why your veins are blue
Answer:
not sure but I think the correct answer is c
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
Answer:
She's probably just getting a check up
Explanation:
