Part of the immune system, a clear fluid containing proteins, salts, organic substances, and water:

Which one of the following bones is part of the axial skeleton?

A) Skull B) Humerus C) Pelvis D) Clavicle

The _________________ standard most often takes into account such tangible factors as harms and benefits, physical, and fiscal risks

a. best interest b. mercy killing c. personhood d. substituted judgment