Speciation, Extinction & Taxonomy 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. Two species of plants that do not cross-pollinate are an example of _____ isolation because they flower at different times of the year.

Question 2 2. A population of lizards is split by an earthquake which leaves half of the population on an island and the other half on the tip of the peninsula. These lizards can't swim. What type of speciation will occur?

Question 3 3. When was the most recent mass extinction event?

Question 4 4. An individual in a wheat population transforms from a diploid to a tetraploid genome. This individual gives rise to a new population of wheat which can no longer successfully mate with the original diploid population. This is an example of:

Question 5 5. Which is the correct order from broadest to narrowest?

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Question 6 6. Which of the following statements correctly describes homologous structures?

Question 7 7. Which of the following statements about taxonomic levels is correct?

Question 8 8. One way to overcome behavioral isolation that prevents animals from reproducing might be to _____.

Question 9 9. A scientist mates two different organisms. She observes no offspring. A closer inspection reveals that the hybrid embryo does not develop properly. This is an example of _____.

Question 10 10.

Which of the following is an example of polyploidy?

I. An insect with n = 4 has 8 total chromosomes in each somatic cell

II. A plant with n = 12 has 48 total chromosomes in each somatic cell

III. A fish with n = 66 has 132 total chromosomes in each somatic cell

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

Question 12 12. A farmer mates a goat and a sheep together. However, he finds he cannot use this hybrid animal to produce any new hybrids. This is an example of _____.

Question 13 13. A scientist mates a blue population of lizards with a red population of lizards. She observes that one out of ten hybrid offspring survive to adulthood compared to, roughly, eight out of ten blue or red lizards. This is an example of _____.

Question 14 14. Which does NOT provide evidence for evolution?

Question 15 15. Which of the following is NOT a reason that the number of species extinctions has increased so dramatically over the past millennium?

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Question 16 16. Which of the following pairs is most likely an analogous relationship?

Question 17 17. Which of the following is an example of a background extinction event?

Question 18 18. Define speciation.

Question 19 19. Use the binomial nomenclature rules you learned to determine which is the correct scientific name for the African lion.

Question 20 20. Which of the following terms is NOT related to the concept of adaptive radiation?

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Question 21 21. A zoo wants to assist two related endangered species with their reproduction and plans to directly implant the sperm into the female. Which type of isolation can NOT be overcome in this way?

Question 22 22. Comparative anatomy is useful for all but which of the following?

Question 23 23. Which of the following is NOT a background extinction event?

Question 24 24. Which is an example of adaptive radiation?

Question 25 25. 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 26 26. The entirety of an organism's habitat, including its food, predators, parasites and other species in the same area is know as:

Question 27 27. Which of the following most accurately describes analogous structures?

Question 28 28. Spatial isolation is the main reason why _____ do not mate.

Question 29 29. Which of the following statements about species is MOST accurate?

Question 30 30. One species of sea urchin is able to mate with another, but fertilization is rarely successful. What is this an example of?

Speciation, Extinction & Taxonomy 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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