Item EN046007: Chimpanzees, humans, chickens, and oak trees all share an ancient common ancestor.
Some organisms, such as a chimpanzee and a human, have many similarities. Others, such as a chicken and an oak tree, have fewer similarities. What is TRUE about the ancestors of these organisms?
- Chimpanzees and humans share a common ancestor with each other, but chickens and oak trees do not share a common ancestor with each other.
 - Chimpanzees and humans share a common ancestor with each other, and chickens and oak trees share a common ancestor with each other, but chimpanzees and humans do not share a common ancestor with chickens and oak trees.
 - Because chimpanzees, humans, chickens, and oak trees are separate species, none of them shares a common ancestor with any other.
 - Chimpanzees, humans, chickens, and oak trees all share an ancient common ancestor.
 
- Distribution of Responses
 
																- Students Responding Correctly
 
| Group | Correct | Total | Percent | 
|---|---|---|---|
| Overall | 153 | 1508 | 10% | 
| Grades | |||
| 6–8 | 71 | 894 | 8% | 
| 9–12 | 82 | 614 | 13% | 
| Gender | |||
| Male | 91 | 729 | 12% | 
| Female | 57 | 739 | 8% | 
| Primary Language | |||
| English | 139 | 1347 | 10% | 
| Other | 11 | 117 | 9% | 

