Download chapter 18 quiz blog version

Name ______________________________Period_______Date_____________
Chapter 18 quiz 2012
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
____
____
____
____
____
____
____
____
____
____
____
____
1. 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.
2. 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.
3. 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.
4. For many species, there are often regional differences in their
a. common names.
c. taxa.
b. scientific names.
d. binomial nomenclature.
5. In taxonomy, a group at any level of organization is referred to as a
a. cladogram.
c. taxon.
b. binomial.
d. system.
6. In the scientific version of a species name, which of the 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
7. Based on their names, you know that the baboons Papio annubis and Papio cynocephalus do NOT belong to
the same
a. class.
c. genus.
b. family.
d. species.
8. 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.
9. In Linnaeus’s system of classification, how many taxonomic categories were there?
a. one
c. five
b. three
d. seven
10. A genus is composed of a number of related
a. kingdoms.
c. orders.
b. phyla.
d. species.
11. Several different classes make up a
a. kingdom.
c. family.
b. phylum.
d. genus.
12. Which two kingdoms did Linnaeus recognize?
a. bacteria and animals
c. plants and animals
b. plants and fungi
d. protists and animals
____ 13. Traditional classifications tended to take into account primarily
a. extinct organisms.
c. DNA similarities.
b. RNA similarities.
d. general similarities in appearance.
____ 14. The procedure of grouping organisms based on their evolutionary history is called
a. traditional classification.
c. derived characters.
b. binomial nomenclature.
d. evolutionary classification.
____ 15. 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.
____ 16. What kind of analysis focuses on the order in which derived characters appeared in organisms?
a. cladistic analysis
c. taxonomy
b. traditional classification
d. anatomy
____ 17. In biology, an evolutionary innovation is also referred to as a
a. derived character.
c. molecular clock.
b. taxonomic group.
d. physical similarity.
____ 18. What does a cladistic analysis show about organisms?
a. the relative importance of each derived character
b. the order in which derived characters evolved
c. the general fitness of the organisms analyzed
d. all traits of each organism analyzed
____ 19. Similar genes are evidence of
a. binomial nomenclature.
c. common ancestry.
b. mutations.
d. different anatomy.
____ 20. 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.
____ 21. Scientists have found that humans and yeasts
a. have similar genes for the assembly of certain proteins.
b. share all aspects of cellular structure.
c. have nothing in common.
d. cannot be evaluated for degree of relatedness.
____ 22. What does the presence of similar genes in very dissimilar organisms imply?
a. The genes were produced by 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.
____ 23. What is the main idea behind the model of a molecular clock?
a. that neutral mutations accumulate at a steady rate
b. that certain traits are under the pressure of natural selection
c. that segments of DNA can be compared with segments of RNA
d. that phenotypes, not genotypes, are affected by natural selection
____ 24. All organisms in the kingdoms Protista, Plantae, Fungi, and Animalia are
a. multicellular organisms.
c. eukaryotes.
b. photosynthetic organisms.
d. prokaryotes.
____ 25. Which kingdom contains heterotrophs with cell walls of chitin?
a. Protista
c. Plantae
b. Fungi
d. Animalia
____ 26. What kingdoms composed the three-kingdom classification system used by scientists in the late 1800s?
a. animals, plants, fungi
c. animals, fungi, protists
b. animals, plants, bacteria
d. animals, plants, protists
____ 27. Which of the kingdoms in the six-kingdom system of classification was once grouped with plants?
a. Animalia
c. Fungi
b. Carnivores
d. Protista
____ 28. Some scientists propose that the kingdom Protista should be broken up into several kingdoms. Which of these
statements accurately supports this idea?
a. Protists are all very similar and easy to confuse.
b. Protista contains very diverse organisms that do not fit into the other kingdoms.
c. Protists are the most numerous organisms on Earth.
d. Protista evolved before any other kingdom.
____ 29. The three-domain system recognizes fundamental differences between two groups of
a. prokaryotes.
c. protists.
b. eukaryotes.
d. multicellular organisms.
____ 30. What is thought to be true about the three domains of living things?
a. They diverged from a common ancestor fairly recently.
b. They diverged from a common ancestor before the evolution of the main groups of
eukaryotes.
c. They did not have a common ancestor.
d. Domains Bacteria and Archaea evolved after the main groups of eukaryotes.