The hormone responsible for the development and maintenance of male secondary sex characteristics is?

Male secondary sex characteristics---that is, features induced in the nonreproductive organs bye the male sex hormones (mainly testosterone)-- make their appearance at puberty. these include the appearance of pubic, axilary, and facial hair, enhanced hair growth on the chest or other body areas in some men, and a deepening of the voice as the larynx enlarges. the skin thickens and becomes oilier (which predisposes young men to acne), bones grow and increase in density, and skeletal muscles increase in size and mass. pg.1040 in Human Anatomy & physiology. eighth edition