NAME ________________TEST-DATE___________ PERIOD
Taxonomy/Classification Review- Test on Valentine’s day!!!
Section A: Blind Date Kingdoms: Use the following dichotomous key to identify
the mystery organism’s kingdom
1. A. Is the organism a prokaryote……………………………………..got to 2
B. Is the organism an eukaryote ……………………………………… got to 3
2. A. Is the organism found in harsh environments………..Archaebacteria
B. Is the organism found in common everyday environments…..… Eubacteria
3. A. The organism in this kingdom can gain energy in one way
(heterotrophic)……………. Protista
B. The organism in this kingdom can gain energy either way (hetero or
auto)……………….Go to 4
4. A. The organisms in this kingdom are autotrophs only……….. Plantae
B. The organisms in this kingdom are heterotrophs only……. Go to 5
5. A. The organisms in this kingdom have cell walls……… Fungi
B. The organisms in this kingdom have no cell walls…….. Animalia
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Mystery date 1: Has a bright shiny new nucleus and a long whippy tail! He loves
to hang out by water, either in the oceans, lakes, streams, or ponds. He can
either make his own food or take you to dinner and eat with you. Who is he?
_________________________________
Mystery Date 2: This tiny little lady is not a very advanced gal, she has genetic
material but it’s not organized in a nice little area. She likes to hang out in some
pretty rough environments like volcanoes or areas with no oxygen. Who is she?
________________________________
Mystery Date 3: Might be right up your ally if you like darkness and death. This
organism has a spiffy nuclear membrane and cell walls made of chiton! He will
take you out to eat but the meal might not be what you like, unless you love to
eat dead and decaying things. Who is he? _____________________
Mystery Date 4: This bright colorful lady will be a really cheap date, you won’t
have to buy her any dinner… she can’t eat it anyway! She makes her own food
automatically. She has cell walls made of cellulose and you won’t have to worry
about losing her, you can see her with the naked eye. Who is she?
_______________________
Mystery Date 5: This guy is a mover and a shaker so you might have to dance
about on this date. You’ll definitely have to do dinner because he is a
heterotroph! He has a great nucleus but no cell walls. Who is he?
__________________________
Mystery Date 6: This lady is very common; you’ll find girls like here everywhere!
She has no internal organization. She just might make you sick, if you want to
get rid of her, try antibiotics. Who is she? ______________________________
MULTIPLE CHOICE: Circle ALL that are true.
There may be MORE THAN one correct answer.
1. The science that specializes in naming and classifying organisms is
______________________.
A. anatomy
B. Biology
C. botany
D. taxonomy
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2. Solely from its name you can tell Rhizopus nigricans must be
______________________.
A. in the genus Rhizopus
B. in the genus nigricans
C. in the species nigricans
D. in the species Rizopus
E. an animal
3. A useful classification system __________________________.
A. gives each organism a unique name
B. shows evolutionary relationships
C. uses different scientific names for the same organism
D. changes the taxon of an organism based on new data
4. In classifying organisms, ORDERS are grouped together into
_________________.
A. genera
B. phyla
C. families
D. classes
5. The largest and most inclusive of Linnaeus’s taxonomic categories is the
_________________.
A. order
B. kingdom
C. phylum
D. species
6. The study of the evolutionary relationships among organisms is called
___________________.
A. taxonomy
B. domainology
C. phylogeny
D. binomial nomenclature
7. This diagram which shows the evolutionary
relationships
8. among a group of organisms is called a
________.
A. taxon
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B. cladogram
C. binomial nomenclature
D. domain
9. A unique trait that is used to construct a cladogram showing evolutionary
relationships between organisms is called a ___________________
A. taxa
B. molecular clocks
C. derived character
D. domains
10.
A.
B.
C.
D.
E.
Which of the following tells how to write a scientific name?
The genus name is always capitalized.
The species name is always capitalized.
The genus name is NOT capitalized.
The species name is NOT capitalized.
Both names are written in italics or underlined.

Use the rules above to correctly write the scientific name for humans
_______________________

Which two languages are used today when determining scientific names for
newly discovered species?
____________________________
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TRUE – FALSE
Write + for true and 0 for false. Change the underlined word or phrase to make the
statement correct.
1. __________ The least inclusive group to which an organism can belong is the
kingdom.
2. __________ Bird wings and insect wings are homologous structures.
3. __________ Organisms that have similar traits but evolved independently are
the result of convergent evolution.
4. __________ Most organisms in the kingdoms Animalia and Plantae are
multicellular.
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5. __________ All organisms in the kingdom Animalia are multicellular,
hetertrophs whose cells lack cell walls.
6. __________ A species is a larger taxonomic unit than a genus.
Tell a “silly phrase” to help you remember Linnaeus’s hierarchy in order:
____________________________________________________________________
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NAME THE 7 TAXONOMIC LEVELS IN LINNAEUS’S CLASSIFICATION SYSTEM IN
ORDER FROM LARGEST TO SMALLEST:
_________________________
_________________________
_________________________
_________________________
_________________________
_________________________
_________________________
Explain how genes are used to help scientists classify organisms.
____________________________________________________________________
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A scientist analyzes the insulin molecules, which are protein molecules found in three
different species:
A, B, and C. The insulin from A is different from B in six different ways and from C in
three ways. Insulin B is different from C in 2 ways. Which two species appear to be
most closely related? Explain.
____________________________________________________________________
_____________
____________________________________________________________________
_____________
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CLASSIFICATION STARTS WITH ?
1. The science of classifying organisms and assigning each organism a unique
universally accepted scientific name is called _T_ ___ ___ ___ ___ ___ ___ ___
2. A group or level of organization into which organisms are classified is called a
a. _T_ __ __ __ __
3. Large taxonomic group made up of closely related phyla that is the top level in
Linnaeus’s classification hierarchy = _K_ __ __ __ __ __ __
4. Greek philosopher who first classified organisms as plants or animals
a. = _A_ __ __ __ __ __ __ __ __
5. A characteristic that appears in recent parts of a lineage, but not in its older
members
a. = _D_ __ __ __ __ __ __ _C_ __ __ __ __ __ __ __ __
6. A _P_ __ __ __ __ __ is a group of closely related classes.
7. _B_ __ __ __ __ __ __ __ _N_ __ __ __ __ __ __ __ __ __ __ __ is the
classification
system in which each species is assigned a two-part scientific name
8. A _C_ __ __ __ __ __ __ __ __ is a diagram that shows the evolutionary
relationships among a
group of organisms
9. An organism that CAN’T make its own food and gets is energy from consuming
other organisms
= _H_ __ __ __ __ __ __ __ __ __ __
10.
Domain of all organisms whose cells have nuclei, including protists, plants,
fungi, and animals
= _E_ __ __ __ __ __ __
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12.
Polysaccharide found in the cell walls of fungi = _C_ __ __ __ __ __
Organisms that “like” hot environments
a. = _T_ __ __ __ __ __ __ __ __ __ __ __
13.
Organism that can make its own food using photosynthesis or
chemosynthesis
a. = _A_ __ __ __ __ __ __ __ __
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14.
Organism whose cells contain nuclei = _E_ __ __ __ __ __ __ __ __
15.
An organism that “likes” high salt environments = _H_ __ __ __ __ __ __
__ __
16.
Kingdom of multicellular eukaryotic heterotrophs whose cells DO NOT
have cell walls or chloroplasts = _A_ __ __ __ __ __ __ __
17.
Kingdom of “ancient” unicellular prokaryotes whose cell walls do not
contain peptidoglycan and are often found in harsh environments such as
volcano hot springs, brine pools, and other anaerobic conditions = _A_ __ __ __
__ __ __ __ __ __ __ __ __ __
18.
Kingdom of unicellular prokaryotes whose cell walls are made of
peptidoglycan
a. = _E_ __ __ __ __ __ __ __ __ __
19.
Kingdom composed of eukaryotes that are not classified as plants,
animals, or fungi
a. = _P_ __ __ __ __ __ __ __
20.
Kingdom composed of heterotrophs including mushrooms, toadstools, and
yeast that obtain energy and nutrients from dead organic matter = _F_ __ __
__ __
21.
Kingdom multicellular photosynthetic autotrophs that have cells walls
containing cellulose and chloroplasts = _P_ __ __ __ __ __ __
22.
The most inclusive taxonomic category based on ribosomal RNA which is
larger than a kingdom
= _D_ __ __ __ __ __
23.
Part of a scientific name that is always capitalized = _G_ __ __ __ __
24.
Group of similar orders = _C_ __ __ __ __
25.
Group of similar families = _O_ __ __ __ __
26.
A _D_ __ __ __ __ __ __ __ __ __ __ _K_ __ __ is a series of paired
statements that describe characteristics of different organisms that can be used
to classify and identify living things.
27.
Substance made of sugars and peptides that is found in the cell walls of
Eubacteria
a. = _P_ __ __ __ __ __ __ __ __ __ __ __ __
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28.
Polysaccharide made by joining glucose subunits which makes plants and
some protists sturdy
= _C_ __ __ __ __ __ __ __ __
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CLASSIFICATION
MULTIPLE CHOICE: Circle ALL that are TRUE.
There may be MORE THAN ONE correct answer.
1. Organisms that can make their own food using chemosynthesis or
photosynthesis are called ___________.
A. heterotrophic
B. autotrophic
2. Organisms whose cells have a nucleus and organelles surrounded by
membranes are called ____________.
A. eukaryotes
B. prokaryotes
3. Which category is LARGER and more inclusive than a KINGDOM?
A. genus
B. class
C. phyla
D. domain
4. The Three-Domain system divides organisms into groups based on similarities in
their _______________.
A. taxons
B. DNA
C. ribosomal RNA
D. derived characters
5. Which of the original 5 kingdoms was divided in two to make the Eubacteria and
Archaebacteria groups used today?
A. Protista
B. Monera
C. Eukarya
D. Fungi
E. Plantae
6. Thermophiles are organisms that can live in __________________
environments.
A. high salt
B. high temperature
C. high oxygen
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7. Which domain includes organisms from more than one kingdom?
A. Prokarya
B. Archaea
C. Eukarya
8. All scientific names of organisms must be
9. A. unique
i.
and have two Latin words.
10.11.
B. general and use the species name.
12.13.
C. different and repeat the phylum name.
14.15.
D. similar and include the common name.
16.
Which of the following scientists developed the system of classifying
organisms by assigning them a genus and species name?
A. Leakey
B. Aristotle
C. Darwin
D. Linnaeus
17.
A.
B.
C.
D.
Poison ivy is also known as Rhus toxicodendron. Its species identifier is
Poison
Rhus
ivy
toxicodendron
18.
19.
Refer to the illustration above. A shark’s skeleton is made of cartilage
while a dolphin’s skeleton is made of bone. This is one reason the two
organisms are placed in different
A. Kingdoms
B. Domains
C. Subspecies
D. Classes
20.
Class : family ::
A. Order : phylum
B. Genus : class
C. Species : genus
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D. Phylum : order
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NAME THE TWO DOMAINS in the THREE-DOMAIN SYSTEM:
_________________________
__________________________
__________________________
Name the SIX KINGDOMS used to classify organisms:
MATCH EACH KINGDOM BELOW WITH ITS DOMAIN:
BACTERIA
EUKARYA
ARCHAEA
_____________________ PROTISTA
ARCHAEBACTERIA
_____________________
_____________________ EUBACTERIA
_____________________ PLANTAE
_____________________ FUNGI
_____________________ ANIMALIA
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You have just discovered a new organism that can’t make its own food, has a nucleus,
and has CHITIN in its cell wall. Tell the KINGDOM AND DOMAIN you would place this
organism in.
KINGDOM ______________________
_______________________
DOMAIN
Tell how the cell walls of Archaebacteria and Eubacteria are different.
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Archaebacteria
________________________________________________________________
Eubacteria
____________________________________________________________________
Tell several ways plants differ from animals.
Plants
____________________________________________________________________
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Animals
____________________________________________________________________
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MATCHING: Match the description of organisms with its KINGDOM:
______ Eukaryotic heterotrophs whose cell walls contain chitin
EUBACTERIA
______ Prokaryotes whose cell walls contain peptidoglycan
______ Multicellular autotrophs with chloroplasts whose cell
walls contain cellulose
A.
B. ARCHAEBACTERIA
C. PROTISTA
D. PLANTAE
E. FUNGI
F. ANIMALIA
______ Prokaryotes whose cell walls lack peptidoglycan
______ Heterotrophic multicellular eukaryotes without cell walls
or chloroplasts
______ Unicellular, colonial, or multicellular eukaryotes that show
the widest variety of characteristics
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On the line below the picture, label each organism with the KINGDOM and DOMAIN to
which it belongs.
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KINGDOM ___________________________
____________________________
KINGDOM
DOMAIN ____________________________
_____________________________
DOMAIN
KINGDOM __________________
_________________
KINGDOM __________________ KINGDOM
DOMAIN ___________________ DOMAIN __________________
__________________
DOMAIN
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Refer to the illustration above, the branching diagram like the one shown is called a
A. Phentic tree
B. Cladogram
C. Family Tree
D. Homology
Refer to the illustration above. Each particular feature, such as dry skin, that is used
to assign an organism to a group is called a(n)
A. special character.
B. analogous character.
C. derived character.
D. homologous character.
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Use the information in the following table to construct a cladogram.
Organism
Earthworm
Trout
Lizard
Human
Derived characters in Organisms
Derived Character
BACKBONE
LEGS
absent
absent
present
absent
present
present
present
present
DRAW CLADOGRAM HERE!
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HAIR
absent
absent
absent
present
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Complete the following table for Classification of organisms.
DOMAIN
KINGDOM?
CELL TYPE
(prokaryote or
eukaryote)?
C ELL WALL
CONTAINS?
(may have NO
cell wall)
CHLOROPLASTS
or
MITOCHONDRIA?
(May be none or
both)
NUMBER OF
CELLS
(unicellular or
multicellular)
Mode of Nutrition
(autotroph or
heterotroph)?
Examples of
Organism?
Classification of Organisms
BACTERIA
ARCHAEA
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Define the following terms:
analogous structures –
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homologous structures –
Give an example of:
analogous structures –
homologous structuresWhich structures show that organisms are more closely related --- analogous
structures or homologous structures?
Use the dichotomous key below to identify each leaf. Remember to start with the first
pair of opposite characteristics and then go to the next pair.
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Dichotomous Key for Leaves
1. Compound or simple leaf
a. Compound leaf (leaf divided into leaflets)
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…………………………………………………….……..…….....go to step 2
b. Simple leaf (leaf not divided into leaflets)
…………………………………………………………………….go to step 4
2. Arrangement of leaflets
a. Palmate arrangement of leaflets (leaflets all attached at one central point)
………..Aesculus (buckeye)
b. Pinnate arrangement of leaflets (leaflets attached at several
points)……………………..go to step 3
3. Leaflet shape
a. Leaflets taper to pointed tips
……………………………………………………………………………………………....Carya (pecan)
b. Oval leaflets with rounded tips
…………………………………………………………………………………………...Robinia (locust)
4. Arrangement of leaf veins
a. Veins branch out from one central point
……………………………………………………………………………...go to step 5
b. Veins branch off main vein in the middle of the
leaf..............................................................go to step 6
5. Overall shape of leaf
a. Leaf is heart-shaped...
……………………………………………………………………………………………………………....Cercis (redbud)
b. Leaf is star-shaped
……………………………………………………………………………………………………..Liquidambar (sweet
gum)
6. Appearance of leaf edge
a. Leaf has toothed (jagged) edge
……………………………………………………………………………………………...Betula (birch)
b. Leaf has untoothed (smooth)
edge………………………………………………………………………………….....Magnolia (magnolia)
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