Which of the following statements is true? the earth’s asthenosphere is made of solid rock. the earth’s inner mantle is made of solid rock. the earth’s inner mantle and asthenosphere are made of solid rock. the earth’s inner mantle and asthenosphere are made of liquid rock.

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.