CLASSIFICATION

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CLASSIFICATION

• ADDING ORDER

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Engage

• Alien Planet Story

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Explore

• Making a Dichotomous Key

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Explain

• Why Classify?
• to bring order to the large number of various
  organisms
• Process is called taxonomy

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Assigning Scientific Names

• Early Efforts at Naming Organisms
• Used common names
• Very confusing
• Very complex
• Binomial Nomenclature
• Carolus Linnaeus in the 18th century
• Each species is assigned a two part scientific
  name
• Homo sapien

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Flowchart
Linnaeuss System of Classification
Section 18-1
Kingdom
Phylum
Class
Order
Family
Genus
Species
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Classification of Ursus arctos
Section 18-1
Coral snake
Abert squirrel
Sea star
Grizzly bear
Black bear
Giant panda
Red fox
KINGDOM Animalia
PHYLUM Chordata
CLASS Mammalia
ORDER Carnivora
FAMILY Ursidae
GENUS Ursus
SPECIES Ursus arctos
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Section Outline

• Modern Evolutionary
• Classification

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• Evolutionary Classification
• Lines of evolutionary descent

Traditional Classification Versus Cladogram
Section 18-2
Crab
Limpet
Barnacle
Gastropod
Crustaceans
Molted exoskeleton
Segmentation
Tiny free-swimming larva
CLADOGRAM
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• B. Classification Using Cladograms
• Derived characters
• Characteristics that appear in recent parts of
  the lineage

Traditional Classification Versus Cladogram
Section 18-2
Appendages
Conical Shells
Crustaceans
Gastropod
Crab
Crab
Limpet
Limpet
Barnacle
Barnacle
Molted exoskeleton
Segmentation
Tiny free-swimming larva
CLASSIFICATION BASED ON VISIBLE SIMILARITIES
CLADOGRAM
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C. Similarities in DNA and RNA

• Similarities at the molecular level show how
  closely organism are related

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Section Outline

• Six Kingdoms System
• Kingdom ArcheaBacteria
• Kingdom EuBacteria
• Kingdom Protista
• Kingdom Fungi
• Kingdom Plantae
• Kingdom Animalia

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Concept Map
Section 18-3
Living Things
are characterized by
Important characteristics
which place them in
and differing
Domain Eukarya
Cell wall structures
such as
which is subdivided into
which place them in
which coincides with
which coincides with
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Key Characteristics of Kingdoms and Domains
Section 18-3
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Elaboration

• Donut Sort
• Silly Science
• Discover the silly scientific name of each of the
  given objects
• Using a Dichotomous Key
• You will use a real dichotomous key to classify
  organisms provided in the given pictures.