Answer: OT
Explanation: OT stands for Online Tardy, which is when you are late for your class, and therefore another teacher has to tell you what you missed.
Answer:
The skin
Digestive tract
Vagina
Mucous membrane
Explanation:
The skin prevents microbes from entering the body
Digestive tract e.g. stomach acid is a natural defence mechanism
The vagina is acidic and this prevents harmful bacteria from growing with it's own flora.
Mucous membranes e.g. lining of the mouth, nose, eyelids are all defense mechanisms.
The doctor is suggesting implantation. <span />
