Which of the following sexual characteristics occur at the onset of puberty? Select all that apply.

Question

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The onset of puberty is marked by significant increases in estrogen production and the development of secondary sex characteristics such as breast enlargement,hair distribution on the mons pubis,and contour changes of the hips and abdomen.The absence of pubic hair is typical of the preadolescent stage.

Which of the Following Sexual Characteristics Occur at the Onset