You need friends? So go make some. Very simple, ask them how their day is going and that's a start
https://humanbodyanatomy.co/parts-of-the-body-anatomy/parts-of-the-body-anatomy-anterior-and-posterior-parts-of-the-body-anatomy-human-anatomy-chart/
this link has a picture with the posterior region.
Styrofoam is poisonous when burned and it takes thousands of years to decompose card bord is biodegradable and probably won't give you cancer if u accidently eat some
Diabetes, Antibodies are proteins that your body produces in response to harmful substances called antigens. An ELISA test may be used to diagnose: HIV, which causes AIDS. Lyme disease.