Why do people need to have sex to have a child?

Well, there are other ways of getting pregnant but having sex is the easiest way of getting pregnant if you are in good health.

Air goes past the epiglottis and into the trachea when you breathe in. from there, it goes to your vocal cords in the larynx until it reaches the bronchi. from the bronchi, air passes into each lung.

Phallus or pelvis or scroutum