Bell work 2/6
How are living
things alike, yet
different?
“Life” ball- 1o min
Rules:
 3 seconds or less to say a characteristic of life
 Bad throw= out
 Not catching a good throw= out
 Being a bad sport/ disrespectful= out
 Intercepting someone’s throw/catch= out
 Talking without ball in hand= out
Classification
Grouping living things
Introduction- 10 min.
 Think about your favorite store
 How is the store organized?
 Create a diagram showing how the merchandise is
organized in the store.
Why do we need organization?
History (DO NOT WRITE)
 Aristotle- one of first people to classify organisms
 Placed organisms into 2 large groups (plants and animals)
 1700- Linnaeus
 Classified organisms based on similar structures
 Present day Systematics
 Classifies organisms based on all evidence known about an
organism
 5 Kingdoms!
Classification
 Living things are classified into 7 groups from the
largest (most general) to smallest (most specific)
1. Kingdom
2. Phylum
3. Class
4. Order
5. Family
6. Genus
7. Species
Example:
1. Humans
1. Kingdom Kid
2. Females and non-females
2. Phylum Female/ Phylum Male
3. Long hair and not- long hair
3. Class long hair/ Class not-long hair
4. T-shirts and not- T-shirts
4. Order T-shirt and Order not- T-shirt
5. Sneakers and not- sneakers
6. Wrist decoration and no wrist
decoration (watch, bracelet, gel-band,
etc)
7. Wearing earrings and not- wearing
earrings
5. Family sneakers and Family notsneakers
6. Genus wrist decoration and
Genus not- wrist decoration
7. Species earrings and Species
not-earrings
Bell work 2/9
What 2 levels of organization do you use
when naming an organism using
binomial nomenclature?
Genus and species
5 Kingdoms
1.
Bacteria (simple unicellular organisms)
2.
Archaea (simple unicellular organisms that live in extreme
environments)
3.
Protista (unicellular but more complex than bacteria or
archaea)
4.
Fungi (unicellular or multicellular and absorb food)
5.
Plantae (multicellular and make own food)
6. Animalia (multicellular and take in food)
Scientific Name
 Binomial nomenclature- gives each organism a two-word
scientific name
1.
Genus- a group of similar species
1.
Species- a group of organisms that have similar traits and
are able to produce fertile offspring
Example: Brown bear
Ursus arctos
Brown Bear Classification
(pg. 313)
Classification tools
 Dichotomous Key- a series of descriptions arranged in
pairs that lead the user to the identification of an unknown
organism
 Turn to page 314 in book
Activity
Work with a partner to classify the candy
on the desk using a dichotomous key!
DO NOT eat the candy!!!
Bell work 2/10
Explain how using a dichotomous
key can help you identify an
organism.
Activty
 Create a dichotomous key to classify the creatures
 Hint: start with a characteristic that will divide the creatures
into 2 groups  then, divide those 2 groups into 2 smaller
groups
 Example: # eyes, hair/no hair, ears/no ears
 The creature has 2 eyes…. Go to step 2
 The creature has 1 eye….. Go to step 4
 http://www.agnespflumm.com/documents/preposterous_dichotomous_k
eys.pdf