The human brain is the most complex organ in the human body
Answer:
B everthing else is phisical
Explanation:
The answer is the physical changes that occur in the body as sexual development is stimulated by hormonal changes. The hormonal signals are produced by the brain to the gonads: the ovaries in a girl, the testes in a boy. In response, the gonads produce hormones that stimulate libido and the growth, and the respective physical characteristics associated with either sex.
Answer:
the second one is 1, the first one is 3, the last one is 5, the fourth one is 2 and the third one is 4
