Classification of All Organisms
Domain Bacteria
Kingdom Eubacteria
1. 3.5 billion years ago
2. Prokaryote
A cell with no nucleus or
membrane-bound
organelles
3. Unicellular
4. Cell walls
w/peptidoglycan
a carbohydrate found in
the cell walls of
eubacteria
5.Autotroph/Heterotroph
• Autotrophs can make their own
food.
• Heterotrophs need to feed off
an outside food source.
6. "True bacteria"like E.coli
7. 10,000 species
8. Motile
Domain Archaea
Kingdom Archaebacteria
• This kingdom of
bacteria was not
recognized until the
late 1990's.
• Evidence shows that
these bacteria are
more different from
eubacteria than we
are from plants!
1 3.5 billion years
ago
2. Prokaryote
3. Unicellular
4. Cell walls without
peptidoglycan
5.Autotroph/Heterotroph
6. "Extremists" salt, hot,
no oxygen
7. 100 species
8. Motile
Domain Eukarya
A. Kingdom Protista
• First
Eukaryotes!
• Organelles
came from
aerobic and
photosynthetic
prokaryotes.
1. 2 billion years ago
2. Eukaryote
• Eukaryotic cells
have a nucleus and
membrane-bound
organelles.
3. Uni or multi cellular
or colonial like
Volvox
4. Plant-like protists have
cell walls with cellulose
• tough carbohydrate fiber,
the main component in
wood and paper.
5. Autotroph/Heterotroph
6. Animal-like - amoeba
Plant-like - algae, seaweed
• Protists, prior to the late
1800's, were classified as
either plants or animals
depending on their
characteristics.
7. 200,000 species
8. Most motile
B. Kingdom Fungi
• It wasn't until the
1950's that Fungi
became its own
kingdom. This
distinction was made
because Fungi could
not make their own
food.
1. 400 million years ago
2. Eukaryote
3. Multicellular -except
for yeast
4. Cell walls with chitin
• Chitin is a complex
carbohydrate that is
also found in the
external skeletons of
insects!
5. Heterotroph
6. 100,000 species
7. Mushrooms,
molds, yeast,
athlete's foot
8. Mostly nonmotile
C.Kingdom Plantae
• Mosses were
the first land
plants. They
evolved from
plant-like
protists like
seaweed.
1.
2.
3.
4.
5.
6.
7.
8.
400 million years ago
Eukaryote
Multicellular
Cell walls with
cellulose
Autotrophs
500,000 species
Flowers, ferns, oaks,
pines
Nonmotile
D. Kingdom Animalia
• 95% of all
animals are
invertebrates.
• Most of these
are insects!
1. 600 million years
ago
2. Eukaryote
3. Multicellular
4. No cell walls
5. Heterotrophs
6. 1.5 million species
7. Sponges, worms,
fish, mammals
8. Motile