The amount of blood in the human body varies based on age ... Hemoglobin levels vary based on sex: Male: For an adult male, a ...

And through those blood ... human could lose 65% of their liver and ultimately be no worse for wear, since it would grow back over just a few months! So when you think about it, your body is ...

And your white blood cells are like police looking for germs. There's a lot going on inside you! Blood transports materials around the body and protects against disease. It contains: ...