Population of Bacteria 35,000
Population Size
30,000
25,000
20,000
15,000
10,000
5000
0
1 2 3 4 5 6 7 8 9 10
Generation
exponential
linear
logistic
limited

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.