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Question
which of the following is true about the origins of adhd?
a)adhd runs in families and is highly heritable.
b)fraternal twins share adhd more often than identical twins.
c)the brains of children with adhd grow more quickly than the brains of unaffected agemates.
d)the brains of children with adhd are about 3 percent larger in volume than the brains of unaffected agemates.
Answer
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