Chapter 18 Classification Test
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
1. Scientists assign each kind of organism a universally accepted name in the system known as
a. traditional classification.
c. binomial nomenclature.
b. the three domains.
d. cladistics.
2. For many species, there are often regional differences in their
a. common names.
c. taxa.
b. scientific names.
d. binomial nomenclature.
3. 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.
4. Which two kingdoms did Linnaeus recognize?
a. bacteria and animals
c. plants and animals
b. plants and fungi
d. protists and animals
5. Traditional classifications tended to take into account primarily
a. extinct organisms.
c. DNA similarities.
b. RNA similarities.
d. general similarities in appearance.
6. 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.
7. Biologists use a classification system to group organisms in part because organisms
a. are going extinct.
b. are very numerous and diverse.
c. are too much alike.
d. share too many derived characters.
8. 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.
9. 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
10. In Linnaeus’s system of classification, how many taxonomic categories were there?
a. one
c. five
b. three
d. seven
11. The procedure of grouping organisms based on their evolutionary history is called
a. traditional classification.
c. derived characters.
b. binomial nomenclature.
d. evolutionary classification.
12. Similar genes are evidence of
a. binomial nomenclature.
c. common ancestry.
b. mutations.
d. different anatomy.
13. What do all organisms have in common?
a. They use DNA and RNA to pass on information.
b. They are all prokaryotes.
c. They are all eukaryotes.
d. They are genetically identical.
14. All organisms in the kingdoms Protista, Plantae, Fungi, and Animalia are
a. multicellular organisms.
c. eukaryotes.
b. photosynthetic organisms.
d. prokaryotes.
Chapter 18 Classification Test
Answer Section
MULTIPLE CHOICE
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