Classification Practice Quiz

Name:

Modified True/False

Indicate whether the sentence or statement is true or false. If false, change the identified word or phrase to make the sentence or statement true.

An organism may have different common names, which vary from area to area and language to language. _________________________

In binomial nomenclature, each species is assigned a two-part scientific name. _________________________

In the name Ursus maritimus, the first term of the name refers to species. _________________________

Linnaeus's system of classification uses seven taxonomic categories. _________________________

An order is a broad taxonomic category composed of similar phyla. _________________________

Scientists often look for similar genes in very dissimilar organisms. _________________________

The six kingdoms of life are Eubacteria, Monera, Protista, Plantae, Fungi, and Animalia. _________________________

Archaea differ from Bacteria in that their cell walls contain peptidoglycans. _________________________

Multiple Choice

Identify the letter of the choice that best completes the statement or answers the question.

The science of classifying living things is called

a.	identification.	c.	taxonomy.
b.	classification.	d.	speciation.

10.

Taxonomy is defined as the science of

a.	classifying plants according to their uses in agricultural experiments.
b.	studying ribosomal RNA sequencing techniques.
c.	grouping organisms according to their charateristics and evoluntionary history.
d.	studying reproductive mechanisms and gene flow.

11.

As we move through the biological hierarchy from the kingdom to species level, organisms

a.	vary more and more.
b.	are less and less related to each other.
c.	become more similar in appearance.
d.	always are members of the same order.

12.

Which of the following scientists developed the system of classifying organisms by assigning them a genus and species name?

a.	Leakey	c.	Darwin
b.	Aristotle	d.	Linnaeus

A Comparison of Dolphins and Sharks

13.

Refer to the illustration above. Because both organisms in the diagram are vertebrates, they are classified in the same

a.	phylum.	c.	order.
b.	genus.	d.	class.

14.

The organism Quercus phellos is a member of the genus

a.	Plantae.	c.	Quercus.
b.	phellos.	d.	Protista.

15.

Poison ivy is also known as Rhus toxicodendron. Its species identifier is

a.	poison.	c.	ivy.
b.	Rhus.	d.	toxicodendron.

16.

The red maple is also known as Acer rubrum. Its scientific name is

a.	red maple.	c.	rubrum.
b.	Acer.	d.	Acer rubrum.

17.

The scientific name of an organism

a.	varies according to the native language of scientists.
b.	is the same for scientists all over the world.
c.	may refer to more than one species.
d.	may have more than one genus name.

18.

Scientists don’t use the common names of organisms because

a.	an organism may have more than one common name.
b.	common names are too ambiguous.
c.	an organism rarely has the same name in different languages.
d.	All of the above

19.

Scientific names are written in what language?

a.	English	c.	Arabic
b.	Greek	d.	Latin

20.

Two organisms in the same class but different orders will

a.	be in different kingdoms.	c.	be in the same phylum.
b.	have the same genus name.	d.	be members of the same species.

21.

Kingdoms are divided into phyla, and a phylum is divided into

a.	families.	c.	orders.
b.	classes.	d.	genera.

22.

The correct order of the biological hierarchy from kingdom to species is

a.	kingdom, class, family, order, phylum, genus, species.
b.	kingdom, phylum, order, family, class, genus, species.
c.	kingdom, phylum, class, order, family, genus, species.
d.	kingdom, class, order, phylum, family, genus, species.

23.

The lowest hierarchy level in biological classification is the

a.	genus.	c.	family.
b.	species.	d.	order.

24.

The DNA sequences of two species of sharks would

a.	be more similar than the DNA sequences of a shark and a dolphin.
b.	show no discernible differences.
c.	be very close to the DNA sequences of a dolphin.
d.	indicate how the sharks evolved.

25.

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.

26.

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.

27.

There are often regional differences in a species'

a.	common name.
b.	scientific name.
c.	taxon.
d.	binomial nomenclature.

28.

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.

29.

In a species name, which of the terms is capitalized?

a.	the first term
b.	the second term
c.	both terms
d.	neither term

30.

The baboons Papio annubis and Papio cynocephalus do NOT belong to the same

a.	class.
b.	family.
c.	genus.
d.	species.

31.

In Linnaeus's system of classification, how many taxonomic categories are there?

a.	one
b.	three
c.	five
d.	seven

32.

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.

33.

Similar genes are evidence of

a.	the unrelatedness of species.
b.	mutations.
c.	common ancestry.
d.	different anatomy.

34.

The kingdoms Protista, Plantae, Fungi, and Animalia contain only

a.	multicellular organisms.
b.	photosynthetic organisms.
c.	eukaryotes.
d.	prokaryotes.

35.

The domain that includes the kingdom Eubacteria is

a.	Archaea.
b.	Bacteria.
c.	Eukarya.
d.	Fungi.

36.

The domain that contains unicellular organisms that live in extreme environments is

a.	Eubacteria.
b.	Eukarya.
c.	Archaea.
d.	Bacteria.

37.

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.

Completion

Complete each sentence or statement.

38.

Panthera leo (lion) and ____________________ tigris (tiger) belong to the same genus.

39.

Different ____________________ of organisms might be grouped into the next larger category, the class.

40.

In Linnaeus's system of classification, the two smallest categories are genus and ____________________.

41.

The class Mammalia is grouped with the classes Aves, Reptilia, Amphibia, and several classes of fishes into the phylum ____________________.

42.

The ____________________ of many dissimilar organisms show important similarities at the molecular level.

43.

The six kingdoms of life include bacteria, archaea, protists, fungi, animals, and ____________________.

44.

The domain ____________________ contains plants, fungi, protists, and animals—all eukaryotes.

45.

The domain ____________________ is composed of the kingdom Eubacteria.

Other

USING SCIENCE SKILLS

Figure 18-2

46.

Interpreting Graphs Which taxonomic category shown in Figure 18-2 contains the greatest number of different organisms?

47.

Classifying Do all organisms shown in Figure 18-2 that belong to the order Carnivora also belong to the phylum Chordata?

48.

Classifying Do all organisms shown in Figure 18-2 that belong to the class Mammalia also belong to the genus Ursus?

USING SCIENCE SKILLS

Classification of Living Things
DOMAIN	Bacteria	Archaea	Eukarya
KINGDOM	Eubacteria	Archaebacteria	Protista	Plantae	Fungi	Animalia
CELL TYPE	Prokaryote	Prokaryote	Eukaryote	Eukaryote	Eukaryote	Eukaryote
CELL STRUCTURES	Cell walls with peptidoglycan	Cell walls without peptidoglycan	Cell walls of cellulose in some; some have chloroplasts	Cell walls of cellulose; chloroplasts	Cell walls of chitin	No cell walls or chloroplasts
NUMBER OF CELLS	Unicellular	Unicellular	Most unicellular; some colonial; some multicellular	Multicellular	Most multicellular; some unicellular	Multicellular
MODE OF NUTRITION	Autotroph	Autotroph or heterotroph	Autotroph or heterotroph	Autotroph	Heterotroph	Heterotroph
EXAMPLES	Streptococcus, Escherichia coli	Methanogens, halophiles	Amoeba, Paramecium, slime molds giant kelp	Mosses, ferns flowering plants	Mushrooms, yeasts	Sponges worms, insects, fishes, mammals

Figure 18-3

49.

Using Tables and Graphs According to Figure 18-3, what is a main difference between the domain Bacteria and the domain Archaea?

50.

Applying Concepts If you know an organism has a cell wall and is a multicellular autotroph, could you use Figure 18-3 to determine in which kingdom it belongs? Why or why not?

51.

Using Tables and Graphs Can you determine, by examining Figure 18-3, which kingdom contains the greatest number of species? Why or why not?

52.

Applying Concepts If you were told only that an organism is unicellular and has chloroplasts and a nucleus, could you use Figure 18-3 to determine to which kingdom it belongs? Why or why not?

USING SCIENCE SKILLS

Classification of Four Organisms
	Corn	Whale Shark	Humpback Whale	Spider Monkey
Kingdom	Plantae	Animalia	Animalia	Animalia
Phylum	Anthophyta	Chordata	Chordata	Chordata
Class	Monocotyledones	Chrondrichthyes	Mammalia	Mammalia
Order	Commelinales	Squaliformes	Cetacea	Primates
Family	Poaceae	Rhincodontidae	Balaenopteridae	Cebidae
Genus	Zea	Rhincodon	Megaptera	Ateles
Species	Zea mays	Rhincodon typus	Megaptera noveaeangilae	Ateles paniscus

Figure 18-4

53.

Using Tables and Graphs Which two organisms listed in Figure 18-4 are most closely related to each other?

54.

Using Tables and Graphs How many different kingdoms are represented by the organisms listed in Figure 18-4?

55.

Inferring Consider the statement: “Size and shape are NOT reliable indicators of degree of relatedness.” What information shown in Figure 18-4 supports this statement?