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Adolescence MODULE 11 181Physical Development in Adolescence11-2 What major physical changes occur during adolescence?The most important physical development of adolescence is puberty, the period of sexual maturation during which a person becomes capable of reproducing. A flood of hormones, which lead to physical and emotional changes, triggers this amazing time of change. Puberty generally begins earlier in girls (about 11 years of age) than it does in boys (around 13 years). Although puberty begins years earlier or later in some people, it generally starts earlier now than it did in the past.4 1. The end of adolescence is mostly determined by ____________.2. Which of the following terms best exemplifies the transition period from childhood to adulthood?a. Pubertyb. Independencec. Adolescenced. Culture3. In the United States, the typical path through adolescencea. is taking longer now than it did a hundred years ago.b. is shorter than it was in the 1890s.c. takes about the same amount of time today as it always has.d. cannot be altered.MAKE IT STICK!Adolescent ScenesHow do you spend your time? Can you identify other typical adolescent activities?puberty The period of sexual maturation, during which a person becomes capable of reproducing.JackF/iStock/Getty Images Oksana Kovach/Alamy Stock Photo ZUMA Press Inc/Alamy Stock Photo%u00a9 Bedford, Freeman & Worth Publishers. For review purposes only. Do not distribute.