Tracking History: The Evidence for Evolution

  • 9th Grade
Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Thames
T
Thames
Community Contributor
Quizzes Created: 10017 | Total Attempts: 9,652,179
| Attempts: 22 | Questions: 20 | Updated: Mar 3, 2026
Please wait...
Question 1 / 21
🏆 Rank #--
0 %
0/100
Score 0/100

1. Homologous structures are a strong form of evidence for evolution because they show a shared ancestry between different species.

Explanation

If two different species have similar bone structures despite using them for different tasks, then they likely inherited that design from a common ancestor. If they shared an ancestor, then this serves as evidence for evolution.

Submit
Please wait...
About This Quiz
Tracking History: The Evidence For Evolution - Quiz

Evolution is not just a theory in the casual sense, it is supported by multiple independent lines of evidence that converge on the same conclusion from completely different directions. Evidence for evolution spans comparative anatomy showing homologous structures, the fossil record documenting transitional forms, molecular biology revealing shared genetic sequences,... see moreand biogeography mapping species distributions. How well do you understand the breadth and strength of the evidence that places evolution among the most well-supported frameworks in all of science?
see less

2.

What first name or nickname would you like us to use?

You may optionally provide this to label your report, leaderboard, or certificate.

2. Fossils that show the intermediate states between an ancestral form and its descendants are called ______ fossils.

Explanation

If a species is evolving from a land dweller to a sea dweller, then there should be fossils with features of both. If these "bridge" fossils exist, then they are defined as transitional fossils.

Submit

3. Comparing the DNA sequences of different species provides modern evidence for evolution.

Explanation

If two species have very similar DNA sequences, then they have had less time to drift apart since sharing a common ancestor. If genetic similarity points to shared history, then it is molecular evidence for evolution.

Submit

4. Why does the study of embryology provide significant evidence for evolution?

Explanation

If a human embryo and a chicken embryo both have gill slits and tails in early development, then they likely share an ancient genetic program. If they share this program, then they share a common ancestor.

Submit

5. Biogeography, the study of where organisms live, is a key piece of evidence for evolution.

Explanation

If similar species are found in the same geographic region (like various lemurs in Madagascar), then they likely evolved from a single ancestor that lived there. If location patterns match ancestry, then it is evidence for evolution.

Submit

6. What is the difference between homologous and analogous structures?

Explanation

If homology is based on shared ancestry and analogy is based on shared function in different lineages (like insect wings vs. bird wings), then their origins are the primary difference.

Submit

7. Molecular homology as evidence for evolution suggests that all living things use the same basic genetic code (A, T, C, G).

Explanation

If every living organism on Earth uses the same molecule (DNA) and the same bases to store information, then it is highly likely they all descended from a single original source.

Submit

8. Most fossils are found in ______ rock, which forms when layers of sand and mud settle over time.

Explanation

If fossils are formed by burial, then they must be trapped in materials that accumulate in layers. If sand and mud turn into stone, then the result is sedimentary rock.

Submit

9. The fact that all vertebrate embryos have a tail at some point in development is evidence of a ______ ancestor.

Explanation

If vastly different animals start their lives with the same physical features, then they are using a shared genetic "recipe." If they share a recipe, then they share a common ancestor.

Submit

10. Which of the following best summarizes how homology and fossils serve as evidence for evolution?

Explanation

If fossils provide a timeline of change and homologies show shared blueprints, then they both support the idea of descent with modification. If they support this idea, then they are evidence for evolution.

Submit

11. What are the preserved remains or traces of organisms from the remote past called?

Explanation

If an organism dies and its hard parts are buried in sediment and mineralized over millions of years, then it creates a permanent record. If this record is a physical remains or trace, then it is a fossil.

Submit

12. The wing of a bird and the wing of a bat have a similar internal bone structure. What is the term for this type of evidence for evolution?

Explanation

If a bird wing and a bat wing share the same basic bone pattern (humerus, radius, ulna), then they are structurally related. If structures share an origin but have different functions, then they are examples of homology.

Submit

13. A butterfly wing and a bird wing both allow for flight, but they have completely different structures and origins. This is an example of what?

Explanation

If two structures perform the same job (flying) but are built differently and have no common ancestor with wings, then they are not homologous. If they are functional but separate in origin, then they are analogous.

Submit

14. The fossil record is considered "complete," meaning we have found every organism that has ever lived as evidence for evolution.

Explanation

If fossilization requires very specific conditions (rapid burial, hard parts), then many soft-bodied organisms never leave a trace. If many organisms are lost to history, then the record is "incomplete" but still provides a clear timeline.

Submit

15. When different species evolve similar traits because they live in similar environments, it is called ______ evolution.

Explanation

If a shark and a dolphin both have streamlined bodies but come from different ancestors, then they arrived at the same solution independently. If they "converged" on the same trait, then it is convergent evolution.

Submit

16. The human arm, a whale's flipper, and a bat's wing all contain a single upper arm bone, two lower arm bones, and a "hand" of many bones. What is this pattern called?

Explanation

If many vertebrates share a "five-fingered" limb plan regardless of whether they swim, fly, or walk, then they share a common skeletal blueprint. If this blueprint is the five-digit plan, then it is the pentadactyl limb.

Submit

17. Scientists use the "Law of ______" to determine that fossils in deeper rock layers are older than those near the surface.

Explanation

If new sediment is always deposited on top of old sediment, then the bottom layers must be the oldest. If we use this to date fossils, then we are applying the Law of Superposition.

Submit

18. Which of the following are considered vestigial structures in humans or other animals?

Explanation

If a structure exists in a species but no longer serves its original purpose or has no function at all, then it is vestigial. If humans have tailbones but no tails, or whales have hip bones but no legs, then those are vestigial.

Submit

19. Which observations about the fossil record support the theory of evolution?

Explanation

If life has changed over time, then the oldest rocks should hold the simplest life. If the fossil record shows a progression from simple to complex and a history of extinction, then it supports evolution.

Submit

20. What did transitional fossils of ancient whales (like Basilosaurus) reveal about their history?

Explanation

If whale fossils show reduced leg bones and a shifting blowhole, then it proves they transitioned from land to sea. If they were land mammals, then they never had gills, making E incorrect.

Submit
×
Saved
Thank you for your feedback!
View My Results
Cancel
  • All
    All (20)
  • Unanswered
    Unanswered ()
  • Answered
    Answered ()
Homologous structures are a strong form of evidence for evolution...
Fossils that show the intermediate states between an ancestral form...
Comparing the DNA sequences of different species provides modern...
Why does the study of embryology provide significant evidence for...
Biogeography, the study of where organisms live, is a key piece of...
What is the difference between homologous and analogous structures?
Molecular homology as evidence for evolution suggests that all living...
Most fossils are found in ______ rock, which forms when layers of sand...
The fact that all vertebrate embryos have a tail at some point in...
Which of the following best summarizes how homology and fossils serve...
What are the preserved remains or traces of organisms from the remote...
The wing of a bird and the wing of a bat have a similar internal bone...
A butterfly wing and a bird wing both allow for flight, but they have...
The fossil record is considered "complete," meaning we have found...
When different species evolve similar traits because they live in...
The human arm, a whale's flipper, and a bat's wing all contain a...
Scientists use the "Law of ______" to determine that fossils in deeper...
Which of the following are considered vestigial structures in humans...
Which observations about the fossil record support the theory of...
What did transitional fossils of ancient whales (like Basilosaurus)...
play-Mute sad happy unanswered_answer up-hover down-hover success oval cancel Check box square blue
Alert!