Passive immunity depends on a antibodies made by another organism. b a person's own immune system to produce antibodies. c antibody-producing cells from another organism. d antigens from a person's own body. e None of the choices are correct.

Select the correct answer. which statement applies only to the axial skeleton, not the appendicular skeleton? a. it contains a pivot joint. b. it has muscles attached that work in pairs. c. it contains red bone marrow. d. it possesses fossa for bone articulation. e. it protects the heart and lungs.