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?

  1. Chimpanzees and humans share a common ancestor with each other, but chickens and oak trees do not share a common ancestor with each other.
  2. 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.
  3. Because chimpanzees, humans, chickens, and oak trees are separate species, none of them shares a common ancestor with any other.
  4. Chimpanzees, humans, chickens, and oak trees all share an ancient common ancestor. 

Distribution of Responses

Chart showing distrubtion of responses for Item EN046007

Percent of students responding correctly

Overall10%
Grades 6–88%
Grades 9–1213%
Male12%
Female8%
Primary Language is English10%
Primary Language is not English9%

View data table