Name: Class: Date:
Answer Key
Section Quiz
17.1 THE LINNAEAN SYSTEM OF CLASSIFICATION
1. b
2. a
3. c
4. d
5. b
The Linnaean System of Classification
Section Quiz
Choose the letter of the best answer.
1. The correct order for the levels of Linnaeus’s classification system, from general to specific, is
a. kingdom, species, class order, family, genus, phylum.
b. kingdom, phylum, class, order, family, genus, species.
c. phylum, kingdom, family, class, order, genus, species.
d. species, genus, kingdom, family, order, class, phylum.
2. Which of the following is correctly written in the binomial nomenclature system?
a. Canis lupus
b. Red wolf
c. Ailurus Fulgens
d. kingdom
3. Which of the following taxa would generally contain the most members?
a. order
b. species
c. phylum
d. class
4. Which phrase best describes the Linnaean classification system?
a. Each genus contains one species.
b. The taxa are interchangeable.
c. There is only one kingdom.
d. Each level includes the more specific levels below.
5. One limitation of the Linnaean classification system is that it
a. allows scientists to discuss organisms.
b. is based on physical characteristics alone.
c. organizes organisms into groups.
d. does not use organisms’ common names.
6. The evolutionary history for a group of species is called a
a. clade.
b. phylogeny.
c. convergence.
d. taxonomy.
7. The embryos of both mammals and reptiles are protected by amniotic fluid. What is this type of trait called?
a. cladogram
b. outgroup
c. derived character
d. molecular evidence
8. Cladistics is a classification system based on
a. nomenclature.
b. dichotomous keys.
c. common ancestry.
d. physical characteristics.
9. In a cladogram, what represents the most recent common ancestor shared by a clade?
a. a mark by the clade’s derived character
b. the overlapping of one clade upon another
c. the longest branch
d. the node where branches meet
10. Which of the following would be considered the strongest evidence that two species are related to one another?
a. common structures
b. shared taxon
c. similar genes
d. same extinction pattern
11. What do molecular clocks use to measure evolutionary time?
a. dichotomous keys
b. mutation rates
c. physical characteristics
d. binomial nomenclature
12. Which of the following has the lowest mutation rate?
a. ribosomal RNA
b. protein sequences
c. amino acids
d. mitochondrial DNA
13. How does mitochondrial DNA differ from nuclear DNA?
a. Mitochondrial DNA is inherited from both parents, and nuclear DNA is not.
b. Mitochondrial DNA has a lower mutation rate than nuclear DNA.
c. Mitochondrial DNA is inherited from the mother only, and nuclear DNA is inherited from both parents.
d. Mitochondrial DNA is made of amino acids and nuclear DNA is made of nucleotides.
14. The best molecular clock for comparing distantly related species is
a. mitochondrial DNA.
b. ribosomal RNA.
c. nuclear DNA.
d. protein.
15. The best molecular clock for comparing closely related species is
a. mitochondrial DNA.
b. ribosomal RNA.
c. nuclear DNA.
d. protein.
16. Woese separated the kingdom Monera into the following two kingdoms:
a. Eukarya and Bacteria.
b. Archaea and Prokaryote.
c. Prokaryote and Eukaryote.
d. Bacteria and Archaea.
17. Which of the following lists the three domains accepted by most scientists?
a. Bacteria, Protista, and Eukarya
b. Bacteria, Fungi, and Protista
c. Eukarya, Archaea, and Bacteria
d. Archaea, Prokaryote, and Eukaryote
18. Which description distinguishes eukaryotes from prokaryotes?
a. Eukaryotes have a cell wall.
b. Eukaryotes are multicellular.
c. Eukaryotes are photosynthetic.
d. Eukaryotes have a nucleus.
19. Single-celled prokaryotes that are classified by their ability to survive extreme conditions are
a. fungi.
b. archaea.
c. protists.
d. eukaryotes.
20. What characteristic of fungi makes them different from plants?
a. They grow only in shade.
b. They have a different cell membrane.
c. They do not feed in the same way.
d. They are prokaryotes, not eukaryotes.
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Biology 4 The Tree of Life