The Origin of Life on Earth Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. The idea that the earth is constantly changing and, therefore, life on earth is continually evolving is:

Question 2 2. What organelles in eukaryotic cells are thought to have originated from prokaryotic cells?

Question 3 3. What scientist is credited with the idea that early life on Earth formed through a series of reactions that made simple compounds gradually more complex?

Question 4 4. Which of the following theories best explains the mass extinction of the dinosaurs?

Question 5 5. When an animal or plant is trapped under a rock or within lava and preserved to be dug up later, the remains are called a(n):

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Question 6 6. Which answer choice correctly orders the three major eons of Earth's history, from the oldest to the most recent?

Question 7 7. Scientists have found fossils that show a sudden appearance of a new organism after a period of no change. Which form of evolutionary change best explains this?

Question 8 8. Which of the following is an example of a background extinction event?

Question 9 9. When was the most recent mass extinction event?

Question 10 10. Cells that are simple and contain no membrane bound organelles are called:

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Question 11 11. Which of the following is NOT evidence for the endosymbiosis theory?

Question 12 12. What type of event separates the Paleozoic, Mesozoic, and Cenozoic eras from one another in the Phanerozoic eon?

Question 13 13. The time period in Earth's history that saw the greatest increase in both the number and diversity of species is the:

Question 14 14. Which of the following is NOT a reason that the number of species extinctions has increased so dramatically over the past millennium?

Question 15 15. What method is used to determine the specific age of a rock or fossil?

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Question 16 16. Small, non-living droplets that can regulate their internal environments are best known as _____

Question 17 17. What is the purpose of the device shown?

Question 18 18. To state an organism is 'extinct' means

Question 19 19. Miller and Urey used all of the following substances to simulate Earth's early atmosphere EXCEPT _____.

Question 20 20. On the Galapagos Islands, there are several species that are similar and resemble a common ancestor. Each island has a slightly different ecosystem. Which of the following best explains how these different species came to be?

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Question 21 21. The Archean and Proterozoic eons are grouped together as the:

Question 22 22. Which of the following best describes an endosymbiont?

Question 23 23. Which term best describes change over time?

Question 24 24. The theory of endosymbiosis best explains:

Question 25 25. Scientists agree that Earth is about how old?

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Question 26 26. Which of the following is NOT a background extinction event?

The Origin of Life on Earth Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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