why do certain people’s brain develop faster then others? , some 12 year olds can be at a level 7a where as others can

why do certain people’s brain develop faster then others? , some 12 year olds can be at a level 7a where as others can be at a 4b

Posted on June 25, 2015 by in Question. Comments Off on why do certain people’s brain develop faster then others? , some 12 year olds can be at a level 7a where as others can