Final answer:
This question pertains to the Biology of the brain's development, particularly during adolescence.
Step-by-step explanation:
The subject of this question is Biology. Specifically, it relates to the development and maturation of the brain and nervous system. The processes mentioned, such as myelination of neural connections, decrease in axons or nerve fibers, thinning of the temporal and frontal lobes, and pruning of unused dendrites, are all part of the normal neurological changes that occur during adolescence.
Learn more about Brain development in Biology