What does sti mean

worth 20 points

A sexually transmitted infection (STI) is an infection you can get by having sex. Some STIs (such as gonorrhea and chlamydia) infect your sexual and reproductive organs. Others (such as HIV, hepatitis B, and syphilis) cause general body infections. STIs used to be called VDs, or venereal diseases.

STI : sexually transmitted infections.
Diseases that are passed through sexual contact.

The answer would be a (carbohydrates)

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.