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Evolutionary Principles 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!

Page 1

Question 1 1. A strong earthquake causes a chunk of land to fall off and float away as a new island. The individuals on this new island reproduce separately from the population on the mainland, changing the allele frequencies among them. This is an example of:

Question 2 2. Which of the following is true about microevolution?

Question 3 3. There are two populations of the same species of grass across a roadway from each other. The wind blows their pollen back and forth, transferring alleles between the two populations. This is an example of

Question 4 4. Which of the following is true about natural selection?

Question 5 5. A heterozygote is

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Question 6 6. What is the heterozygote advantage?

Question 7 7. The malaria/sickle-cell relationship is an example of which type of diversity maintaining mechanism?

Question 8 8. What is the mechanism that selects against a trait if it becomes too common within a population?

Question 9 9. Which of the following statements is NOT true about natural selection?

Question 10 10. Which of the following is an example of an accommodation?

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Question 11 11. Which of the following statements is true?

Question 12 12. Which of the following is an adaptation?

Question 13 13. Why does natural selection act on phenotypes and not genotypes?

Question 14 14. Natural selection alters which of the following?

Question 15 15. Which best describes genotype?

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Question 16 16. Which best defines phenotype?

Question 17 17. Which of the following statements is true?

Question 18 18. At least what proportion of species must go extinct for it to be considered a mass extinction event?

Question 19 19. Which of the following statements is NOT true?

Question 20 20. How are strata organized?

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Question 21 21. A bat wing and a human arm are __ because the come from __ ancestor(s)

Question 22 22. Convergent evolution is best defined as

Question 23 23. Analogous structures arise in unrelated organisms because

Question 24 24. Convergent evolution leads to which type of traits or structures?

Question 25 25. What does comparative anatomy look at?

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Question 26 26. What is biogeography?

Question 27 27. Which is true about homologous structures?

Question 28 28. Which is true about a scientific theory?

Question 29 29. The bottleneck effect is usually a result of

Question 30 30. Why is genetic diversity essential to a population's survival?

Evolutionary Principles 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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