Multiple Choice
Identify the letter of the choice that
best completes the statement or answers the question.
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1.
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The
second part of a scientific name is often a. | a Latinized description of a
trait. | b. | the same as for
other members of the same genus. | c. | capitalized if it derives from a proper
name. | d. | different in
different locales. | | |
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2.
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Scientists have identified and named a. | all living species. | b. | all living and extinct species. | c. | all extinct species. | d. | a fraction of all species. | | |
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3.
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In
taxonomy, a group at any level of organization is referred to as a a. | category. | b. | binomial. | c. | taxon. | d. | system. | | |
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4.
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Several different classes compose a a. | kingdom. | b. | phylum. | c. | family. | d. | genus. | | |
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5.
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The
baboons Papio annubis and Papio cynocephalus do NOT belong to the same a. | class. | b. | family. | c. | genus. | d. | species. | | |
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6.
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A
genus is composed of a number of related a. | kingdoms. | b. | phyla. | c. | orders. | d. | species. | | |
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7.
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The
kingdoms Protista, Plantae, Fungi, and Animalia contain only a. | multicellular organisms. | b. | photosynthetic organisms. | c. | eukaryotes. | d. | prokaryotes. | | |
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8.
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Scientists assign to each organism a universally accepted name in the discipline known
as a. | traditional
classification. | b. | diversity. | c. | taxonomy. | d. | cladistics. | | |
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9.
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The
most general and largest category in Linnaeus's system is a. | the phylum. | b. | the kingdom. | c. | the genus. | d. | the species. | | |
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10.
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In
Linnaeus's system of classification, how many taxonomic categories are there? a. | one | b. | three | c. | five | d. | seven | | |
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11.
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The
two domains composed of only unicellular organisms are a. | Eubacteria and Archaea. | b. | Eukarya and Bacteria. | c. | Archaea and Bacteria. | d. | Archaea and Eukarya. | | |
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12.
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Some
similarities between distantly related organisms have been produced by a. | convergent evolution. | b. | molecular clocks. | c. | mutations. | d. | reclassification. | | |
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13.
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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. | | |
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14.
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The
three-domain system acknowledges fundamental differences between two groups of a. | prokaryotes. | b. | eukaryotes. | c. | protists. | d. | multicellular organisms. | | |
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15.
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What
kind of analysis reveals the order in which derived characters appeared in
organisms? a. | cladistic
analysis | b. | traditional
classification | c. | taxonomy | d. | anatomy | | |
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16.
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Linnaeus recognized two kingdoms— a. | bacteria and animals. | b. | plants and fungi. | c. | plants and animals. | d. | protists and animals. | | |
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17.
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Animals that are warm-blooded, have body hair, and produce milk for their young are
grouped in the class a. | Amphibia. | b. | Mammalia. | c. | Aves. | d. | Reptilia. | | |
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18.
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What
does the presence of homologous genes in very dissimilar organisms imply? a. | The genes evolved according to different selection
pressures. | b. | The organisms
share a common ancestor. | c. | The organisms do not share a common
ancestor. | d. | The genes became
identical through mutation. | | |
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19.
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The
domain that contains unicellular organisms that live in extreme environments is a. | Eubacteria. | b. | Eukarya. | c. | Archaea. | d. | Bacteria. | | |
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20.
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Biologists use a classification system to name and group organisms because organisms
are a. | going extinct. | b. | very diverse. | c. | all exactly alike. | d. | too numerous to count. | | |
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21.
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The
domain that includes the kingdom Eubacteria is a. | Archaea. | b. | Bacteria. | c. | Eukarya. | d. | Fungi. | | |
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22.
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Similar genes are evidence of a. | the unrelatedness of species. | b. | mutations. | c. | common ancestry. | d. | different anatomy. | | |
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23.
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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. | | |
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24.
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The
strategy of grouping organisms based on their evolutionary history is called a. | traditional classification. | b. | binomial nomenclature. | c. | derived characters. | d. | evolutionary classification. | | |
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25.
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Traditional classifications tend to take into account only a. | extinct organisms. | b. | RNA similarities. | c. | DNA similarities. | d. | general similarities. | | |
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