| I: | There are fewer bones in an infant than there are in an adult. |
| II: | There are more facial bones than there are cranial bones. |
| III: | There are more fused vertebrae than there are unfused vertebrae. |
| IV: | Since they are composed of cartilage, ribs 8, 9, and 10 are called false ribs. |
| 1. | 0 | 2. | 1 |
| 3. | 2 | 4. | 3 |