Copy down the following list.

1
Bell Work
Instructions 1) First click on "View" from the
top-menu bar. 2) Then click on "Slide Show" from
the drop-down menu. 3) Then use the right-arrow
button on your keyboard to advance through this
presentation.
SPI 0807.5.1 Classification Keys
Science
Copy down the following list. This is a memory
device for the 8 levels of classification
Donkey Kong Puts Children On Flying Giant
Squirrels (1) Donkey (Domain) (2) Kong
(Kingdom) (3) Puts (Phylum) (4) Children
(Class) (5) On (Order) (6) Flying (Family) (7)
Giant (Genus) (8) Squirrels (Species)
Donkey Kong
2
SPI 0807.5.1 Classification Keys
Notes
Science
Tennessee SPI Objective Use a simple
classification key to identify an unknown
organism.
Essential Learning Students will identify unknown
organisms using classification keys.
Essential Question How do I interpret and use the
information in a classification key to identify
an unknown organism?
3
What is taxonomy?
SPI 0807.5.1 Classification Keys
Science
Notes
Tennessee GLE Objective Identify various
criteria used to classify organisms into groups
(Discuss)
Tennessee Check for Understanding Select
characteristics of plants and animals that serve
as the basis for developing a classification
key (Discuss)

• Taxonomy is the science of defining and naming
  organisms.

• Organisms are classified according to similar
  physical and genetic characteristics.

4
SPI 0807.5.1 Classification Keys
Science
Notes

• Modern Taxonomy
• 8 level system of classification
• Categories go from broad to narrow
• 1) Domain
• 2) Kingdom
• 3) Phylum
• 4) Class
• 5) Order
• 6) Family
• 7) Genus
• 8) Species

5
8-level classification system
SPI 0807.5.1 Classification Keys
Science
Notes

• Similar Example Where is Rock Springs Middle
  School?
• 1) The Universe
• 2) Milky Way Galaxy
• 3) Planet Earth
• 4) Northern Hemisphere
• 5) North America
• 6) The United States of America
• 7) Tennessee
• 8) Smyrna

6
Classification Criteria
SPI 0807.5.1 Classification Keys
Science
Notes

• In taxonomy organisms are classified according
  to similar physical and genetic characteristics.

Example 01 At the Domain level -organisms are
classified according to whether or not their
cell(s) contains a nucleus.
7
Classification Criteria
SPI 0807.5.1 Classification Keys
Science
Notes

• In taxonomy organisms are classified according
  to similar physical and genetic characteristics.

Example 02 At the Class level -organisms are
grouped according to similar physical
characteristics.
8
SPI 0807.5.1 Classification Keys
Science
Notes
What is binomial nomenclature?

• Around 1735 Carolus Linnaeus created a system of
  naming organisms called binomial nomenclature

• It is a two part naming method
• Uses the last 2 classification levels (Genus and
  Species) to name an organism

Example Human Beings Genus Homo Species
Sapiens
9
SPI 0807.5.1 Classification Keys
Science
Notes
8-level classification system
Example Human Beings (Homo Sapiens) 1) Domain
Eukarya 2) Kingdom Animalia 3)
Phylum Chordata 4) Class
Mammalia 5) Order Primates
6) Family Hominoidia
7) Genus Homo

• Binomial Nomeclature
• 2 part naming system

1st part
2nd part
8) Species Sapiens
10
SPI 0807.5.1 Classification Keys
Science
Notes
Classification Keys There are different types of
classification keys. Here is one example you
might see on a quiz or test.
11
SPI 0807.5.1 Classification Keys
Science
Notes
Classification Keys There are different types of
classification keys. Here is another example you
might see on a quiz or test.
12
SPI 0807.5.1 Classification Keys
Science
Notes
Classification Keys There are different types of
classification keys. Here is another example you
might see on a quiz or test.
13
SPI 0807.5.1 Classification Keys
Science
Notes
Classification Keys There are different types of
classification keys, but now we will focus on
dichotomous keys.
What is a dichotomous key? It is series of paired
questions which help you identify an organism.
Example (for identifying species of bears) 1a.
It has white fur------------------species Ursus
maritimus 1b. It does not have white fur-----Go
to step two 2a. It has brown fur-----------------
species Ursus arctos 2b. It doe not have brown
fur-----Go to step three 3a. It has black
fur------------------species Ursus
americanus 3b. It doe not have black
fur-------Done
Video Link Dichotomous Key Tutorial
14
SPI 0807.5.1 Classification Keys
Science
Activity
Classification Key Activity (A.K.A Dichotomous
Key)
After reviewing the following you will make a
dichotomous key Here is an example using four
dinosaurs
15
Activity
Activity Make a dichotomous key about these 7
organisms