The linea alba is a fibrous structure that runs down the midline of the abdomen in humans and other vertebrates.
Washing your hands, showering/bathing, and brushing your teeth
Don’t get punched into anything, even holding hands should be a choice
The answer is Circulatory System. It is responsible for moving blood and oxygen around the body, etc. (Brainiest answer plz and thank you) Hope this helped!