Development: And Aging Timeline Pltw Answer Key Portable

Increase in testosterone or estrogen levels.

Remember that PLTW emphasizes homeostasis . Aging represents a gradual failure of homeostatic mechanisms. For instance, the elderly cannot regulate blood sugar as well (insulin resistance) or blood pressure as well (baroreceptor desensitization). development and aging timeline pltw answer key

The story begins with a frantic explosion of activity. At birth, the brain is roughly 25% of its adult weight, but it’s a construction site. Millions of neural connections Increase in testosterone or estrogen levels

In the toddler years, the brain reaches 90% of its adult size. This era is marked by rapid myelination development and aging timeline pltw answer key