The answer is; C
Testosterone is regarded as the male hormone and responsible for male attributes such as high muscle and bone mass. It is produced by the Leydig cells of the testes This hormone is responsible for the formation of sperm in the male gonads. Therefore the hormone ensures male fertility.
The skeletal system is the structure of your body, like the walls of a house, without it we would all be blobs.
In scientific theory, genes are organisms that are transferred from a parent cell to the offspring. Overtime, it will determine some of the traits the offspring is taken from either parent.
