Final answer:
The evidence that a female is in puberty is demonstrated by changes such as breast development, hair growth, and the start of menstruation.
Step-by-step explanation:
The evidence that a female is in puberty is demonstrated by several changes. These changes include the development of breast tissue, growth of axillary and pubic hair, a growth spurt in height, and the start of menstruation. The sequence of these changes is predictable, but the onset and pace of puberty can vary.