Which of these is a puberty related change caused by increased testosterone levels?
A) accelerated bone deposition and skeletal growth
B) loss of terminal hairs on the face and chest
C) replication of skeletal muscle fibers
D) thinning of the vocal folds
E) decreased erythropoiesis

Question

Quizplus · Accepted Answer

Increased testosterone levels during puberty are responsible for accelerated bone deposition and skeletal growth, leading to an increase in height and change in body proportions.

Answer: D
 Increased testosterone levels also cause thickening and lengthening of the vocal folds, leading to a deeper voice. Therefore, thinning of the vocal folds is not a puberty-related change caused by increased testosterone levels.

The other choices are incorrect:
B) Loss of terminal hairs on the face and chest is a puberty-related change caused by decreased testosterone levels.
C) Replication of skeletal muscle fibers is not a puberty-related change caused by increased testosterone levels. 
E) Decreased erythropoiesis is not a puberty-related change and is not directly caused by testosterone levels.

Which of These Is a Puberty Related Change Caused by Increased