Diversity of life in micro-organisms
- Created by: Dipansh Bhatt
- Created on: 10-03-13 06:18
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- Diversity of life in micro-organisms
- why classify?
- Means of seekig order
- Vast no. of  organisms exist
- Ensure standardization
- Taxonomy- Naming organisms
- How to classify?
- History
- 1707-1778
- Carolus Linnaeus
- Binomial system- ranks: species genera class and kingdom
- Carolus Linnaeus
- At first(384-322BC)
- Similar patterns. From big groups to sub categories- hierachy
- Aristotle based the first classification on structures, behavior and degree of developement
- Similar patterns. From big groups to sub categories- hierachy
- NowÂ
- Charles darwin
- showed all organisms have common ancestry
- 8 ranks: kingdom phylum class order family genera species
- showed all organisms have common ancestry
- Charles darwin
- 1707-1778
- Methods used
- common characteristics (homology), similarities in internal and external body structures, development characteristics, genotype
- *homology structures may look different but are similar as they developed fro same ancestors, anology- body structures may resemble
- History
- 1969- Robert H. Whittaker
- 5 kingdoms
- Bacteria, Protista, Fungi, Plantae, Animalia
- 5 kingdoms
- Carl Woese
- 3 domains- Bacteria, Archae, Eukarya
- Based on 16s rRNA sequence. these ribosomes o through very slow change.
- 3 domains- Bacteria, Archae, Eukarya
- why classify?
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