Log In | Register

Item EN047003: A species living today and an extinct species could share a common ancestor that lived a very long time ago, even if the two species have few similarities.

Which of the following is TRUE about living species and extinct species?

  1. If a species living today and an extinct species have many similarities, they could share a common ancestor, but if they have few similarities they could not share a common ancestor.
  2. A species living today and an extinct species could share a common ancestor that lived a very long time ago, even if the two species have few similarities.
  3. No species living today could share a common ancestor with an extinct species.
  4. Species living today could share a common ancestor with each other, but extinct species could not share a common ancestor with each other because extinct species are the ancestors of species living today, never of each other.
Distribution of responses
Answer Choice
Overall
Grades
Gender
Primary Language
 
n = 3089
6–8
n = 1928
9–12
n = 1161
Male
n = 1440
Female
n = 1565
English
n = 2763
Other
n = 245
A. 23% 27% 18% 24% 22% 23% 24%
B. 55% 50% 63% 52% 57% 55% 53%
C. 9% 10% 8% 10% 9% 9% 10%
D. 13% 14% 11% 14% 12% 13% 13%