Name : ________________________________
Pd. _____
Chapter 18: Classification
Section 18.1 Finding Order in Diversity (p. 510-515)
1. Identify two goals of systematic
a. _________________________________________________
b. _________________________________________________
2. Why do the common names of organisms – like daisy or mountain lion – often cause problems
for scientists?
________________________________________________________
3. Describe how a dichotomous key works.
________________________________________________________
________________________________________________________
4. Define binomial nomenclature.
________________________________________________________
5. The scientific name of the sugar maple tree is Acer saccharum. What does each part of the
name designate?
________________________________________________________
6. From general to specific, list the ranks in the Linnaean system of classification.
________________________________________________________
________________________________________________________
7. True or False. Linnaeus mostly used just visible similarities and differences in classifying
organisms.
8. What is a major problem with the traditional classification system?
________________________________________________________
a. Give an example that demonstrates this problem.
______________________________________________________
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Name : ________________________________
Pd. _____
Section 18.2 Modern Evolutionary Classification (p. 516-522)
1. What is the goal of phylogenetic systematics, or evolutionary classification?
________________________________________________________
________________________________________________________
2. How does evolutionary classification differ from traditional classification?
________________________________________________________
________________________________________________________
3. To an evolutionary taxonomist, what determines whether two species are in the same genus?
________________________________________________________
________________________________________________________
4. Define clade.
________________________________________________________
5. Define monophyletic group.
________________________________________________________
6. How are clades different from Linnaean taxa?
________________________________________________________
________________________________________________________
7. What is a cladogram?
________________________________________________________
8. What does a node signify in a cladogram?
________________________________________________________
________________________________________________________
9. What is a derived character?
________________________________________________________
10. What role do molecular analyses of DNA have in classification?
________________________________________________________
________________________________________________________
11. Explain why the classification of American vultures has changed.
________________________________________________________
________________________________________________________
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Name : ________________________________
Pd. _____
Section 18.3 Building the Tree of Life (p. 523-528)
1. List the six kingdoms.
______________________________________________________
2. Define domain.
______________________________________________________
3. How do kingdoms and domains differ?
______________________________________________________
4. List the defining traits of the domain Bacteria.
______________________________________________________
______________________________________________________
______________________________________________________
Which kingdom is in the domain Bacteria? ______________________
5.
6. List the defining traits of the domain Archaea.
7.
______________________________________________________
______________________________________________________
______________________________________________________
Which kingdom is in the domain Archaea? ______________________
What is the single defining trait of the domain Eukarya? ______________________
8.
9. Which kingdoms are in the domain Eukarya?
______________________________________________________
10. List the defining traits of the kingdom Protista.
______________________________________________________
______________________________________________________
______________________________________________________
11. List the defining traits of the kingdom Fungi.
______________________________________________________
______________________________________________________
______________________________________________________
12. List the defining traits of the kingdom Plantae.
______________________________________________________
______________________________________________________
______________________________________________________
13. List the defining traits of the kingdom Animalia.
______________________________________________________
______________________________________________________
______________________________________________________
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