1. Do Now /17/15
What would you call this animal? Are there any other names by which it goes by?

2. Pg 126 Classification
On what basis did you initially separate organisms?
After the initial grouping, what characteristics did you use as distinguishing factors?
What did you separate by when you made 8 groups?
In terms of shared characteristics, what happens as you make more subdivisions?

3. Article Questions
What is the scientific name of the fern and why did they give it that name?
Is the dingo a descendent of a wolf like the domestic dog?
What are the unique characteristics of the dingo?
What is the scientific name of the dingo?

4. Linnaean Classification

5. Taxonomy
The study of the classification of living and extinct organisms.

6. Life is very diverse

7. The Challenge
Biologists have identified and named approximately 1.5 million species so far.
They estimate that between 2 and 100 million species have yet to be identified.
So we classify

8. Carlos Linnaeus - (1707-1778) a Swedish physician who was interested in plants
He devised a systematic way of classifying all known kinds of organisms that we still use today.

9. Finding Order in Diversity
1. Why Classify?
To study the diversity of life
To organize and name organisms
2. Why give scientific names?
Common names are misleading
jellyfish
silverfish
star fish
None of these animals are fish!
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10. Origin of Scientific Names
By the 18th century, scientists realized that naming organisms with common names was confusing.
Scientists during this time agreed to use a single name for each species.
They used Latin and Greek languages for scientific names.

11. Binomial Nomenclature
Two name naming system
Gave organisms 2 names
Genus (noun) and species (adjective)
Carolus Linnaeus
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12. Binomial Nomenclature Rules
Rules for naming organisms
1. Written is Latin
2. Genus capitalized, species lowercase
3. Both names are italicized or underlined
EX: Homo sapiens: wise / thinking man

13. Bionomial Nomenclature
Homo sapiens
Lower case species name
Capitalize Genus Name
Italicize OR underline both Genus and species

14. Why Scientists Assign Scientific Names to Organisms
Some organisms have several common names
This cat is commonly known as:
Florida panther
Mountain lion
Puma
Cougar
Scientific name: Felis concolor
Scientific name means “coat of one color”
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15. Linnaeus’ classification system has seven levels.
Each level is included in the level above it.
Levels get increasingly specific from kingdom to species.

16. Linnaeus’s System of Hierarchy
Least specific
Kingdom
Which of the following contains all of the others?
Family c. Class
Species d. Order
Based on their names, you know that the baboons Papio annubis and Papio cynocephalus do not belong to the same:
Family c. Order
Genus d. Species
Phylum
Class
Order
Family
Genus
Most specific
Species
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17. Each level is more specific.
Hierarchical Ordering of Classification
Grizzly bear
Black bear
Giant panda
Red fox
Abert squirrel
Coral snake
Sea star
KINGDOM Animalia
PHYLUM Chordata
CLASS Mammalia
As we move from the kingdom level to the species level, more and more members are removed.
Each level is more specific.
ORDER Carnivora
FAMILY Ursidae
GENUS Ursus
SPECIES Ursus arctos
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