Eight-year-old ella can use scissors to cut small paper dolls out of construction paper, somethign she could not do at the age of 3. what best accounts for her improving dexterity?

Increased myelination of the central nervous system

Explanation:

According to my research that is based on the findings of different biologists Ella's new ability to cut the paper dolls with scissors can be accredited to an Increased myelination of the central nervous system. Myelination is an anatomical term that explains the steps of generating a myelin sheath around a nerve to allow nerve impulses to move more quickly. Thus improving a persons dexterity.

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answer; i believe that the correct answer is culture based resources;

i'll just take the points xd