Poor description: Babies have a lot of random movements that are designed to preserve muscle mass & function until the nervous system matures enough to use them in more refined ways.Maturity progresses top down &from the middle outward.Stiff reflex movement in the legs lessens to allow getting to standing by 9-10mo.`the refined movements needed to cut with scissors doesn't come in until age 6-8.
Answered 3/22/2013
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