The spinal cavity ,is enclosed within the vertebral foramen of the vertebrae
Answer: Primary Sex characters
Explanation:
The primary sexual characters are associated with the growth of sexual organs such as uterus, vagina, penis and other reproductive organs in the human beings.
These organs are present in the body when the child is borne. This is because they grow when the child is inside the womb.
The development and maturation of these organs takes place during the later stages of life.
That is where the fibers of the optic nerve exit the eye extending into the brain. there are no rods and cones there as a result.
The answer would be the cell wall or the cell membrane
