Original Project
Human Body Systems
Lungs take in oxygen molecules and eliminate carbon dioxide molecules.
Item CE101004: Both the brain and muscles of the body are made of cells.
Which of the following parts of an animal's body are made of cells?
- The muscles, but not the brain
- The brain, but not the muscles
- Both the muscles and brain
- Neither the brain nor the muscles
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 2225 | 3222 | 69% |
| Grades | |||
| 6–8 | 1343 | 1996 | 67% |
| 9–12 | 877 | 1214 | 72% |
| Gender | |||
| Male | 1079 | 1587 | 68% |
| Female | 1105 | 1571 | 70% |
| Primary Language | |||
| English | 1996 | 2850 | 70% |
| Other | 176 | 294 | 60% |