Name: ___________________________________________ Biology Ch 18 Practice Test (1 of 7)

1. __________________________ naming system of classification

2. __________________________ each level in a taxonomic nomenclature

3. __________________________ botanist who created binomial nomenclature

4. __________________________ diagram that shows evolutionary relationships

5. __________________________ characteristics that appear in recent parts of a lineage But not in older members.

6. __________________________ taxonomic category that is more inclusive than kingdom

7. __________________________ The use of a two-part scientific name for identification of organisms

8. __________________________ domain that contains plants, fungi, protists, and animals

9. _________________________ group of closely related species

10. __________________________ study of evolutionary relationships among organisms

11. List all the 8 CURRENT levels of classification, starting with the category that has the

most diversity and ending with the category that is the most specific.

Name: ___________________________________________ Biology Ch 18 Practice Test (2 of 7)

12. __________ For many species, there are often regional differences in their

a. Common names c. taxa b. Scientific names d. binomial nomenclature

13. __________ The second part of a scientific name is unique to each

a. Order in its class c. genus in its family b. family in its order. d. species in its genus

14. __________ Several different classes make up a

a. Kingdom c. family b. Phylum d. genus

15. __________ Which two kingdoms did Linnaeus recognize?

a. Bacteria and animals c. plants and animals b. Plants and fungi d. protists and animals

16. __________ Traditional classifications tended to take into account primarily

a. Extinct organisms c. DNA similarities b. RNA similarities d. general similarities in appearance

17. __________Sometimes organisms that are not closely related look similar because of

a. Convergent evolution c. mutations b. Molecular clocks d. reclassification

18. __________ In an evolutionary classification scheme, species within one genus should

a. Be more similar to each other than they are to other species b. Not be similar in appearance c. Be limited to species that can interbreed d. Have identical genes

19. __________An analysis of derived characters is used to generate a

a. Family tree based on external appearance b. Family tree based on DNA structure c. Cladogram d. Traditional classification system

20. __________What is true about dissimilar organisms such as a cow and a yeast?

a. They are not related at all b. Their degree of relatedness cannot be evaluated c. Their degree of relatedness can be determined from their genes d. They can inbreed and thus are the same species

Name: ___________________________________________ Biology Ch 18 Practice Test (3 of 7)

21. __________What kingdoms composed the three-kingdom classification system used by scientists in the 1800s? a. Animals, plants, fungi c. Animals, fungi, protists b. Animals, plants, bacteria d. animals, plants, protists

22. __________ Organisms in the kingdoms Eubacteria and Archaebacteria were previously

grouped in a kingdom called a. Animalia c. Monera b. Fungi d. Eukarya

23. __________ Biologists use a classification system to group organisms in part because

organisms a. Are going extinct c. are too much alike b. Are very numerous and diverse d. share too many derived characters

24. __________ The study of organisms requires the use of

a. Only large, general categories of organisms b. Only small, specific categories of organisms c. Both large and small categories of organisms d. No categories of organisms

25. __________ In binomial nomenclature, which of the two terms is capitalized?

a. The first term only c. both the first and second terms b. The second term only d. neither the first nor the second term

26. __________ How many taxonomic categories were in Linneaus’ system of classification?

a. Two c. five b. Three d. seven

27. __________ The procedure of grouping organisms based on their evolutionary history

a. Traditional classification c. derived characters b. Binomial nomenclature d. evolutionary classification

28. __________ What do scientist consider when they perform cladistic analysis?

a. Only the DNA of organisms c. derived characters b. All traits of organisms d. only physical similarities

29. __________ Similar genes are evidence of

a. Binomial nomenclature c. common ancestry b. Mutations d. different anatomy

Name: ___________________________________________ Biology Ch 18 Practice Test (4 of 7)

30. __________ What do all organisms have in common? a. They use DNA and RNA c. They are all eukaryotes b. They are all prokaryotes d. They are genetically identical

31. __________ The domain that includes the kingdom Eubacteria is a. Archae c. Eukarya b. Bacteria d. Fungi

32. __________ The domain that contains unicellular organisms that live in extreme

environments is a. Eubacteria c. Archae b. Eukarya d. Bacteria

33. What is evolutionary classification? How does it differ from traditional classification?

34. How do you know that the groups Ursus maritimus and Uersus arctos are closely related?

35. How can such different animals as fishes, amphibians, reptiles, birds, and mammals all be grouped in a single phylum?

Name: ___________________________________________ Biology Ch 18 Practice Test (5 of 7) USE THE TABLE TO ANSWER QUESTIONS ON THIS PAGE

36. What characteristic is used to place an organisms in the domain Eukarya?

37. What is the main difference between the domain Bacteria and the domain Archae?

38. Which kingdom contains heterotrophs with cell walls of chitin?

39. If you know an organism has a cell wall and is a multicellular autotroph, could you use the table to determine in which kingdom it belongs? Why or why not?

40. Can you determine which kingdom contains the greatest number of species? Why or why not?

41. If you were told only that an organism is unicellular and has chloroplasts and a nucleus, could you determine to which kingdom it belongs? Why or why not?

42. Which characteristic seems more important in assigning an organism to a specific domain or the presence or absence of a nucleus or its mode of nutrition?

Name: ___________________________________________ Biology Ch 18 Practice Test (6 of 7) 43. Which taxonomic category shown in the figure Contains the greatest number of different organisms? 44. Do all organisms shown in the figure that belong to the order Carnivora also belong to the phylum Chordata? Explain how you know.

45. Do all organisms shown in the figure that belong to the class Mammalia also belong to the genus Ursus? Explain how you know.

46. Based on the information in the figure, describe how the diversity at each level changes from species to kingdom.

47. Considering the information in the figure, if you were given a species name and no other information about an unfamiliar organism, what is the largest taxonomic category that you could assign it to?

Name: ___________________________________________ Biology Ch 18 Practice Test (7 of 7)

48. Which grouping in the figure shows the older, traditional method of classifying the three animals shown? What kind of evidence was used to carry out that classification?

49. Which system of groupings in the figure, A or B, provides information about the evolution of three animals? What is the name of the diagram used to show that information?

50. According to the cladogram in the figure, what two characteristics do crabs and barnacles share that limpets do not? How do you know?

Biology Chapter 18 Practice Test Answer Key

1. Taxonomy 2. Taxon 3. Linnaeus 4. Cladogram 5. Derived characters 6. Domain 7. Binomial nomenclature 8. Eukarya 9. Genus 10. Phylogeny 11. Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species 12. A. common names 13. D. species in its genus 14. B. phylum 15. C. plants and animals 16. D. general similarities in appearance 17. A. convergent evolution 18. A. be more similar to each other than they are to other species 19. C. cladogram 20. C. their degree of relatedness can be determined from their genes 21. D. animals, plants, protists 22. C. Monera 23. B. very numerous and diverse 24. C. both large and small categories of organisms 25. A. the first term only 26. D. seven 27. D. evolutionary classification 28. B. all traits of organisms 29. C. common ancestry 30. A. they use DNA and RNA 31. B. Bacteria 32. C. Archae 33. Traditional classification places organisms into categories based mainly upon similarities

in body structure. Evolutionary classification, on the other hand, places organisms into categories that represent lines of evolutionary descent, rather than just physical similarities.

34. Their scientific names show they both belong to the same genus 35. The animals share some common features, such as similar body plans and internal

functions. 36. The presence of a nucleus 37. Bacteria have cell walls with peptidoglycan, while Archae cell walls lack peptidoglycan 38. Fungi

39. No, it. Could belong to Protista or Plantae 40. No, the table gives no information about the number of species in kingdoms 41. Yes, it could only be a Protist because the protists are the only eukaryotic unicellular

organisms that have chloroplasts. 42. The presence or absence of a nucleus is more important. All three domains contain

both autotrophs and heterotrophs. 43. The kingdom 44. Yes, each general category contains the categories shown beneath 45. No, the genus Ursus does not contain any of the categories above it. 46. The species has the least diversity. From genus upward, each category has more

diversity than the one before it. 47. The genus (the species name includes the genus and species) 48. A, clearly visible characteristics 49. B, cladogram 50. Segmentation and molted exoskeleton, the limpet only has characteristics from before

the cladogram branches, which means it does not have segmentation and molted exoskeleton characteristics which occur after the crab and barnacle branched off.