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Your grandmother has Parkinson's disease. The doctor feels that this is the result of a lack of (blank) .

a) substance P
b) dopamine
c) serotonin
d) adrenaline

1 Answer

5 votes
The answer is b)dopamine

Explanation:
When people have Parkinson’s disease they tend to having trouble with their motor skills caused by their dopamine levels. So their levels are unbalanced or well lacked of.
User Martin Wantke
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