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Classification
How would you classify these
shapes?
Level 1 Classification
Blue
Pink
Level 2 Classification
Square
Heart
Circle
Triangle
Which level is more specific?
A. Level 1
Blue
Pink
B. Level 2
Square
Heart
Circle
Triangle
Why is Classification Important?
• To Study the Diversity of Life
• To name organisms
• Group organisms in a logical manner that
has a biological meaning
Seven classification groups of living things
Did King Philip Come Over For Good Spaghetti?
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Domain
K ingdom
P hylum
Class
Order
F amily
Genus
S pecies
Broadest
More Specific
Most Specific
At what classification level do
we (humans and lions) go our
separate ways?
A.
B.
C.
D.
Phylum (Chordata)
Class (Mammalia)
Order (Carnivora)
Family (Felidae)
Human Classification
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Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
Eukarya
Animalia
Chordata
Mammalia
Primates
Hominidae
Homo
Sapiens
The 3 domains
• Archaea (Prokaryote)
• Bacteria (Prokaryote)
• Eukarya (Eukaryote)
The 6 kingdoms
• Archea
– Archaebacteria
• Bacteria
– Eubacteria
• Eukarya
Eukaryotes
– Fungi
A.
Fungi
B.Protista
–
Protista
C.Animalia
–
Animalia
D.Plantae
–
Plantae
Animal Phyla
• There are 38 animal phyla
• 97% of animal species are invertebrates
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Cnidaria
Platyhelminthes
Annelida
Porifera
Mollusca
Arthropoda
• There is only one phylum for vertebrates
– Chordata
Chordata Classes
• There are 16 classes of chordates
• 10 of them are different classes of fish
• The others are:
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Reptilia
Aves
Amphibia
Mammalia
Mammalian Orders
• There over 30 orders of mammals
• Here are a few
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Carnivora
Primates
Rodentia
Lagomorpha
Cetacea
Chiroptera
Proboscidea
Sirenia
Which Similiarities are most
Important?
A. Looks
B. Habitat
C. Food
D. Locomotion
E. Evolution
– Phylogeny-evolutionary relationships among
organisms
• Scientists group organisms based on
evolutionary descent or phylogeny
Name that organism
• Taxonomyscientists
classify
organisms and
assign each
organism a
universally
accepted name.
Which level of classification is more
specific than Genus?
A.
B.
C.
D.
Kingdom
Class
Family
Species
Binomial Nomenclature
• Developed by Linnaeus
• Two-name system
• Each organism has a genus
and a species name
• First name (genus); second
name (species)
Are You Paying Attention?
A.
B.
C.
D.
Yes
Mostly
Not Really
Not at All
Binomial Nomenclature
• Combination of the genus and
species name of an organism is a
scientific name
• Scientific names of organisms are
always italicized or underlined
• Genus name is capitalized
• Species name is lower-case