1. Classification

2. Do Now How would you organize the following words?
Steak, football, sausage, chair, table, bacon, sofa, baseball bat, cleats, ham, bookcase

3. Think – Pair - Share
1. Why do scientists organize or classify living things?
2. What other systems of classification do you see in daily life?

4. Turn to a different partner!
Try to classify the following into groups. Make a title to each group!
Violet
Onion
Honeysuckle
Dolphin
Cat
Bat
Rosemary
Oak
Sea Bass
Bear
Crow
Apple
Blackberry Bush
Eel
Wolf
Owl

5. Add in the following animals
Bacteria
Grass
Octopus
Amoeba
Ring Worm (fungi)
Cactus
Does it change your classification at all?

6. Chapter 17.1 Taxonomy
Linnaeus’s system of classification was the first formal system of taxonomy.
Taxonomy - the science of classification of organisms
Taxon - a grouping in the classification system

7. Binomial Nomenclature
Linnaeus’s method of naming organisms, called binomial nomenclature, gives each species a scientific name with two parts.
The first part is the genus name, and the second part is the specific epithet, or specific name, that identifies the species.

8. Why do we need scientific names?
What is the scientific name for humans?
Homo sapiens
What is the scientific name for cats?
Felis catus
What do you notice about how I write those names?

9. Writing Scientific Names
The first letter of the genus name always is capitalized
If a scientific name is written in a printed book or magazine, it should be italicized.
When a scientific name is written by hand, both parts of the name should be underlined.
After the scientific name has been written completely, the genus name will be abbreviated to the first letter in later appearances (e.g., C. cardinalis).

10. How would you write the following names?
Species: auratus Genus: carassius

11. Do Now – write the scientific name for the giraffe.
COMMON NAME: giraffe
KINGDOM: Animalia
PHYLUM: Chordata
CLASS: Mammalia
ORDER: Artiodactyla
FAMILY: Giraffidae
GENUS giraffa (one who walks swiftly)
SPECIES: camelopardalis (camel marked like a leopard)

12. Determining Relationships
Originally, Classification was based on similarities between organisms
Now, we classify organisms based on evolutionary relationships

13. Classification of Living Things

14. Taxonomic Categories
Each category is contained within another, and they are arranged from broadest to most specific.

15. SCIENTIFIC CLASSIFICATION
COMMON NAME: giraffe
KINGDOM: Animalia
PHYLUM: Chordata
CLASS: Mammalia
ORDER: Artiodactyla
FAMILY: Giraffidae
GENUS SPECIES: Giraffa (one who walks swiftly) camelopardalis (camel marked like a leopard)

16. Do Now Place the following in order of most specific to least: Phylum
Species
Kingdom
Genus
Family
Domain
Class

18. 3 Domains System
Archaea - Prokaryotes, extremophiles (live in extreme environments), no oxygen!
Bacteria – Prokaryotes, very diverse, cell walls made of peptidoglycan.
Eukarya – Eukaryotes (4 Kingdoms)

20. Protists are eukaryotic organisms that can be
Organizing Life’s Diversity
Kingdom Protista
Protists are eukaryotic organisms that can be
unicellular, colonial,
or multicellular.
Protists are classified into three different groups—plantlike, animal-like, and funguslike.

21. A fungus is a unicellular or multicellular eukaryote that absorbs
Organizing Life’s Diversity
Kingdom Fungi
A fungus is a unicellular or multicellular
eukaryote that absorbs
nutrients from organic
materials in its
environment.
Member of Kingdom Fungi are
heterotrophic, lack motility, and have cell walls.

22. Members of Kingdom Plantae form the base of all terrestrial habitats.
Organizing Life’s Diversity
Kingdom Plantae
Members of Kingdom Plantae form the base of all terrestrial habitats.
All plants are multicellular and have cell walls composed of cellulose.
Most plants are
autotrophs, but some are heterotrophic.

23. All animals are heterotrophic, multicellular eukaryotes.
Organizing Life’s Diversity
Kingdom Animalia
All animals are heterotrophic, multicellular eukaryotes.
Animal organs often are organized into complex organ systems.
They live in the water, on land, and in the air.

25. Organizing Life’s Diversity

26. Conclusion Activity 1. Which of these is the highest level of
classification?
A. class
B. family
C. order
D. phylum
2. The five-kingdom classification system had to
be changed to a three-domain, six-kingdom
system because of the discovery of _______.
A. fungi
B. protists
C. archaebacteria
D. prokaryotes
3. Which kingdom contains heterotrophic,
multicellular eukaryotes?
A. Animalia
B. Fungi
C. Plantae
D. Protista

27. Conclusion Activity 1. Which pair of organisms is more closely
related?
1. Quercus alba
2. Cornus alba
3. Quercus rubra
A. 1 and 2
B. 2 and 3
C. 1 and 3
D. Can’t determine
2. Why aren’t mushrooms classified as plants?
A. They are heterotrophs.
B. They don’t have cell walls.
C. They don’t absorb nutrients from their environment.
D. They lack motility—the ability to move.