Alexandro is 14 years old and beginning to experience the physical changes of puberty. He is a little embarrassed because he has rapidly outgrown his clothes, his voice sometimes breaks or cracks, and he has new hair appearing on his chin and face. These features are all

Question

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These features are all secondary sex characteristics, which are the physical changes that occur during puberty that are not directly involved in reproduction, such as voice changes and facial hair growth.

Alexandro Is 14 Years Old and Beginning to Experience the Physical