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Item EN015002: Scientists can use both fossils and DNA to study organisms that lived in the past.

Which of the following do scientists use to learn about organisms that lived many years ago but are no longer alive today?

  1. Fossils of organisms that lived many years ago, and DNA from the remains of organisms that lived many years ago.
  2. Fossils of organisms that lived many years ago, but not DNA from the remains of organisms that lived many years ago.
  3. DNA from the remains of organisms that lived many years ago, but not fossils of organisms that lived many years ago.
  4. Scientists have no way to learn anything about organisms that lived many years ago but are no longer alive today.
Distribution of responses
Answer Choice
Overall
Grades
Gender
Primary Language
 
n = 3053
6–8
n = 1866
9–12
n = 1187
Male
n = 1471
Female
n = 1523
English
n = 2710
Other
n = 265
A. Fossils of organisms that lived many years ago, and DNA from the remains of organisms that lived many years ago. 59% 58% 60% 58% 60% 60% 52%
B. Fossils of organisms that lived many years ago, but not DNA from the remains of organisms that lived many years ago. 25% 24% 25% 23% 26% 24% 25%
C. DNA from the remains of organisms that lived many years ago, but not fossils of organisms that lived many years ago. 11% 11% 10% 13% 9% 11% 14%
D. Scientists have no way to learn anything about organisms that lived many years ago but are no longer alive today. 6% 6% 5% 7% 5% 5% 9%