NAME:_________________________________
Taxonomy Practice:
Three Domains:
All organisms belong to one of three domains, depending on their characteristics. A domain is the most inclusive
taxonomic category. A single domain can contain one or more kingdoms. Write each of the following domain
names in the correct place in the table:
Bacteria
Archaea
Eukarya
Domain
Domain Characteristics
Prokaryotes with cell walls made up of
peptidoglycan
Kingdoms Included in Domain
Eubacteria
Eukaryotes
Protista, Fungi, Plantae, Animalia
Prokaryotes whose cell walls do not contain
peptidoglycan and whose cell membranes
contain unusual lipids
Archaebacteria
Practice with Domains and Kingdoms:
DOMAIN
KINGDOM
Bacteria
Archaea
Eukarya
Eubacteria
Archaebacteria
Protista
Fungi
Plantae
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
chitin; no
chloroplast
Cell walls of
cellulose;
chloroplasts
No cell
walls or
chloroplasts
NUMBER OF
CELLS
Unicellular
Unicellular
Most unicellular;
some colonial; some
multicellular
Most
multicellular;
some
unicellular
Multicellular
Multicellular
MODE OF
NUTRITION
Autotroph or
heterotroph
Autotroph or
heterotroph
Autotroph or
heterotroph
Heterotroph
Autotroph
Heterotroph
EXAMPLES
Streptococcus,
Escherichia
coli
Methanogens,
halophiles
Amoeba,
Paramecium, slime
molds, giant kelp
Mushrooms,
yeasts
Mosses,
ferns,
flowering
plants
Sponges,
worms,
insects,
fishes,
mammals
Figure 18-3
1. According to the figures, what is the main difference between the domain Bacteria and the domain Archaea?
2. If you know an organism has a cell wall and is a multicellular autotroph, could you use Figure 18-3 to determine
the kingdom to which it belongs? Why or why not?
3. If you were told only that an organism is unicellular and has chloroplasts and a nucleus, could you use Figure 18-3
to determine the kingdom to which it belongs? Why or why not?
Taxonomy Practice:
1. What is a species and how do new species develop?
2. Define taxonomy:
3. Who is known as the "Father of Taxonomy"? ____________________________________
4. Why are common names a problem for scientists?
5. What is binomial nomenclature?
6. What two parts constitutes a "scientific name"? ____________________ and the __________________
7. List the rules for writing a scientific name.
8. If your name were a scientific name, which part would be the genus? __________________
9. Which part would be the species identifier? _______________________________________
10. Now write your name as a scientific name. _______________________________________
11. Number the major classification groups (taxa) in order from the most specific (1) to the least specific (7).
___class
___order
___family
___phylum
___genus
___species
___kingdom
Circle the scientific name that is LEAST like the other 2.
12. Canis familiaris
13. Felis domesticus
14. Acer rubrum
Canis lupis
Felis domesticus
Mus domesticus
Felis concolor
Acer saccarum
Reseda odorata
Use the following table to answer questions 15-17:
Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Cetacea
Family
Mysticeti
Genus
Balaenoptora
Species
B. physalus
Common Name Blue Whale
Animalia
Chordata
Mammalia
Carnivora
Mustelidae
Mustela
M. furo
Ferret
Animalia
Chordata
Mammalia
Carnivora
Felidae
Felis
F. domesticus
Domestic cat
15. How does the table indicate that a cat is more closely related to a bobcat than a ferret?
16. Which two animals are most closely related? How do you know?
17. What kind of animal is Balaenoptora borealis? How do you know?
Animalia
Chordata
Mammalia
Carnivora
Felidae
Felis
F. rufus
Bobcat