Evolution
Evolution and Natural Selection
Item EN046012: Chimpanzees, humans, zebras, and worms all share an ancient common ancestor.
Some organisms, such as a chimpanzee and a gorilla, have many similarities. Others, such as a zebra and a worm, have fewer similarities. What is TRUE about the ancestors of these organisms?
- Chimpanzees and gorillas share a common ancestor with each other, but zebras and worms do not share a common ancestor with each other.
- Chimpanzees and gorillas share a common ancestor with each other, and zebras and worms share a common ancestor with each other, but chimpanzees and gorillas do not share a common ancestor with zebras and worms.
- Because chimpanzees, gorillas, zebras, and worms are separate species, none of them shares a common ancestor with any other.
- Chimpanzees, gorillas, zebras, and worms all share an ancient common ancestor.
- Distribution of Responses
- Points Earned
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 117 | 1131 | 10% |
| Grades | |||
| 6–8 | 2 | 41 | 5% |
| 9–12 | 105 | 1001 | 10% |
| Gender | |||
| Male | 69 | 466 | 15% |
| Female | 36 | 583 | 6% |
| Primary Language | |||
| English | 101 | 1027 | 10% |
| Other | 4 | 31 | 13% |
- Distribution of Responses
- Points Earned
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 120 | 555 | 22% |
| Grades | |||
| 6–8 | 5 | 32 | 16% |
| 9–12 | 100 | 459 | 22% |
| Gender | |||
| Male | 57 | 228 | 25% |
| Female | 50 | 265 | 19% |
| Primary Language | |||
| English | 102 | 480 | 21% |
| Other | 5 | 18 | 28% |
- Distribution of Responses
- Points Earned
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 238 | 583 | 41% |
| Grades | |||
| 6–8 | 4 | 7 | 57% |
| 9–12 | 207 | 528 | 39% |
| Gender | |||
| Male | 107 | 269 | 40% |
| Female | 115 | 281 | 41% |
| Primary Language | |||
| English | 209 | 527 | 40% |
| Other | 3 | 13 | 23% |