​Jack and Jill are twins. Because he is a boy, Jack’s parent…

​Jack and Jill are twins. Because he is a boy, Jack’s parents encourage him to run. However, they discourage Jill from engaging in athletic activity. As a result, Jack is much faster at running up a hill than Jill. The difference in Jack and Jill’s behavior is best explained by

​Maricella was born several days ago, and her pediatrician h…

​Maricella was born several days ago, and her pediatrician has observed that she has almond-shaped eyes and a fold over her eyelids. In addition, her head, neck, and nose are smaller than other babies of her birth weight. It is most likely that Maricella has an extra _____ chromosome.

​”Daddy, can you help me get dressed?” Boris asked his fathe…

​”Daddy, can you help me get dressed?” Boris asked his father. “You can put on your pants and socks by yourself, but I’ll help with your shirt and shoes,” his father said. From Vygotsky’s theory, Boris’s father is using ____ when he does not give his son help on skills that his son has already mastered.