And Aging Timeline Pltw Answer Key - Development

form every second, doubling the brain's size as it learns to map the five senses. By the end of this stage, "pruning" begins—the brain starts cutting away weak connections to make the strong ones more efficient. The Expansion (2 – 5 Years)

Increase in testosterone or estrogen levels. development and aging timeline pltw answer key

Long bones lengthen at the epiphyseal plates. Key Milestone: Development of the prefrontal cortex begins. Adolescence: The Hormonal Shift form every second, doubling the brain's size as