SBI 3U
Biological Classification
1. Your scientific name is Home sapiens. Look at the chart and determine how this name was formed. What
is the scientific name for a grizzly bear? A robin?
2. Name all of the taxons that the robin and the grizzly bear have in common. What are the main structural
characteristics that these two organisms have in common?
3. If an organism has been placed in the phylum Chordata, does it necessarily follow that it is also a member
of the kingdom Animalia? Explain.
4. How does this classification scheme indicate a close relationship between the domestic cat and the
mountain lion?
5. Would you expect organisms belonging to the same class to have fewer structural characteristics in
common than organisms belonging to the same order? Explain.
6. According to the table, which pair of organisms has more structural similarities: man and gorilla, or gorilla
and grizzly bear? Explain.
7. According to the table, which pair of organisms has more structural characteristics in common: the cat and
the mountain lion, or the choke cherry and the rose? What evidence is there for your answers?
Taxon
Man
Gorilla
Grizzly Bear
Crayfish
Robin
KINGDOM
Animalia
Animalia
Animalia
Animalia
Animalia
PHYLUM
Chordata
Chordata
Chordata
Arthropoda
Chordata
CLASS
Mammalia
Mammalia
Mammalia
Crustacea
Aves
ORDER
Primates
Primates
Carnivora
Decapoda
Passeriformes
FAMILY
Hominidae
Pongidae
Ursidae
Hornaridae
Turdidae
GENUS
Homo
Gorilla
Ursis
Cambarus
Turdus
SPECIES
sapiens
gorilla
horribilis
bartoni
migratorius
Rose
Choke Cherry
Euglena
Cat
Mountain Lion
KINGDOM
Plantae
Plantae
Protista
Animalia
Animalia
PHYLUM
Tracheophyta
Tracheophyta
Mastigophora
Chordata
Chordata
CLASS
Angiospermae
Angiospermae
Phytomastigophorea
Mammalia
Mammalia
ORDER
Rosales
Rosales
Euglenoidida
Carnivora
Carnivora
FAMILY
Rosaceae
Rosaceae
Euglenidae
Felidae
Felidae
GENUS
Rosa
Prunus
Euglena
Felis
Felis
SPECIES
canina
virginiana
gracilis
catus
concolor