1. Bell Work

2. Objective:
Use a simple classification key to identify an unknown organism.

3. Classification Activity
At your lab table there are several pictures of animals. Remove all pictures from the folder.
With your lab group, categorize these pictures according to their characteristics.
Your team must make at least three groups (or more). Lay the pictures in three separate groups on your lab table.
Keep the name of each group a secret because when we share our groups, we will allow the other groups to guess how you categorized the pictures.
Don’t tell your category names when you show the picture, wait until the other groups guess.

4. Classification means organizing living things into groups based on their similarities.

5. Scientists classify living and extinct organisms to make them easier to study.

6. Organisms are classified by shared characteristics and their relationships between one another.

7. The levels of classification go from very general to very specific.

8. The 8 levels: Domain Did Kingdom King Phylum Philip Class Come
Order Over
Family From
Genus Great
Species Spain
The 8 levels:
Pneumonic device

9. The science of classifying organisms is called taxonomy.

10. Taxonomy was founded by Linnaeus in the 1700’s.
He classified things only by their shared characteristics.

11. Modern taxonomists also look at evolutionary relationships between animals.

12. A branching diagram can show the relationships between organisms.

14. Group Activity using the Branching Diagram
1. Construct a Branching diagram
2. Use a frog, a snake, a kangaroo,
and a rabbit in your diagram.
3. Think of one major change before
the frog appeared.
4. For the last 3 organisms, think of
a change that happened between one of these and
the other 2. Write all of these in your diagram.

15. rabbit kangaroo snake frog Young develop fully inside mother
Fur; live birth
Lay eggs on dry land; dry skin
Air breathing; ability
to live on land

16. Organisms that are more closely related are closer together on the branching diagram.

17. When living things are classified, they get a scientific name.
The scientific name is the same anywhere in the world.

18. The 4 Rules to writing a Scientific Name:

19. 1. Scientific names are usually Latin or Greek.

20. 2. The scientific name is always the genus and species name together.

21. 3. The Genus is always written first and capitalized.
The species is second and is always lower case.

22. 4. The scientific name is always italicized or underlined.
Ex. Felis domesticus

23. Scientists can use a dichotomous key to identify unknown organisms.
Pg. 52

24. Bacteria are prokaryotic, meaning they do not have nuclei.
All other living things are eukaryotic and have nuclei.

25. Scientists use 3 Domains.
Archaea
Bacteria
Eukarya
Prokaryotes
Eukaryotes

26. Scientists use 6 kingdoms.
Archaebacteria
Eubacteria
Protista
Plantae
Fungi
Animalia

27. They have been on the earth for about 3 billion years.
Domain Archaea
Kingdom Archaebacteria - live in extreme environments (very hot or cold)
They have been on the earth for about 3 billion years.

28. Most bacteria are in Kingdom Eubacteria.
Domain Bacteria
Most bacteria are in Kingdom Eubacteria.
They live in many places all over the earth and even inside other organisms.

32. Domain Eukarya
Kingdom Protista -consists of unicellular & simple multicellular organisms.

33. Protista includes organisms that are not plants, animals or fungi

38. They are complex, multicellular organisms
Domain Eukarya
Kingdom Plantae - Plants are usually green & make food by photosynthesis
They are complex, multicellular organisms

39. Kingdom Fungi- absorb food from their surroundings.
Domain Eukarya
Kingdom Fungi- absorb food from their surroundings.
Fungi are usually multicellular (except yeast).

40. Domain Eukarya
Kingdom Animalia
Most move around and have nervous systems. Animals are complex & multicellular.

41. Five Kingdom Classification
Monera
Kingdom
Protist
Fungi
Plant
Animal
Major Traits
Single-celled; no nucleus
Most are single-celled
Some make own food; some cannot make own food
Most are many-celled; cannot make own food
Single-celled and many-celled; make own food; cannot move from place to place
Many-celled; cannot make own food; can move from place to place
Examples
Bacteria
Paramecium amoeba euglena
Mushroom mold, yeast
Tree, small flowering plant, fern, algae
Sponge, insect, clam, fish, bird, snake, human