Answer:
amino acids
Explanation:
(if you are confused, I recommend watching the videos from Khan Academy and The Amoeba Sisters.)
Answer:
This person was part of the control group
Explanation:
PET scan positron emission tomography is a special image test that can show how different tissues in the body is functioning or in the case of the brain reacting to stimuli.
In this case the cingulate cortex is the area of the brain linked to reactions involving pain or painful stimuli. If a person has undergone a painful procedure and was not given any relief this area will be activated and will be able to be detected on a PET scan. On the contrary, if one has received pain relief this will not be the case. So, an active cingulate cortex will be observed on a PET scan for a subject in pain.
