Answer:
puberty - is the name for the time when your body begins to develop and change as you move from kid to adult.
hormones - Hormones are chemical substances that act like messenger molecules in the body.
gender - Gender is used to describe the characteristics of women and men that are socially constructed,
I believe the answer you are looking for is the excretory system.
The answer is C. Medical technicians
Pretty sure it’s studies because you read textbooks to learn more about the subject. So B.Studies
May be batteries because we need battery for our torch light which may be helpful during emergency