Harrison is 15 years old and has gained both height and weight, some body hair, and a deeper voice during the past year. These changes are examples of:
A)epigenetic characteristics.
B)primary sex characteristics.
C)menarche.
D)secondary sex characteristics.

Question

Quizplus · Accepted Answer

Harrison's growth of body hair, voice deepening, and increase in weight and height are examples of secondary sex characteristics, which are physical changes that occur during puberty and are not directly related to reproduction. Primary sex characteristics, on the other hand, refer to the development of reproductive organs, such as testes in males and ovaries in females. Epigenetic characteristics refer to changes in gene expression without alterations to the underlying DNA sequence. Menarche specifically refers to the onset of menstruation in females and is not applicable to Harrison's case as he is male.

Harrison Is 15 Years Old and Has Gained Both Height