Domains
Definition - a taxonomic subdivision even larger than a kingdom
there are three main domains and they are...
1) Archaea
Characteristics
2) Bacteria/Eubacteria
Characteristics
3) Eukarya
there are three main domains and they are...
1) Archaea
- includes Archaebacteria
- includes forms of bacteria living in extreme conditions (ex: hot springs and sulfur pools)
- includes methanogens and halophiles
Characteristics
- obligate anaerobes
- microscopic
- prokaryotic
- cell wall with no peptidoglycan
- DNA unique to archaea
- live in extreme environments
2) Bacteria/Eubacteria
Characteristics
- aerobes
- prokaryotes
- cell wall with peptidoglycan
- DNA unique to Bacteria/eubacteria
- microscopic
- live in moderate environments
3) Eukarya
- includes all eukaryotic organisms
- huge domain consisting of seven levels of classification