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Questions and Answers
Which classification system is based on observable characteristics and uses computers for processing?
What type of information does cytotaxonomy use for classification?
Which method assumes that organisms belonging to the same taxa have a common ancestor?
Which type of taxonomy uses chemical constituents to resolve classification confusions?
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Why do taxonomists use alternative classification methods like numerical taxonomy and chemotaxonomy?
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Study Notes
Phylogenetic Classification
- Classification systems based on evolutionary relationships between organisms are currently acceptable, assuming a common ancestor for organisms within the same taxa.
Resolving Classification Difficulties
- Information from multiple sources is used to resolve classification difficulties, particularly when fossil evidence is lacking.
Numerical Taxonomy
- Numerical Taxonomy is a method that uses computers to analyze all observable characteristics of an organism.
- Each characteristic is assigned a number and code, and data is processed to give equal importance to each character.
- Hundreds of characteristics can be considered simultaneously using this method.
Additional Taxonomic Approaches
- Cytotaxonomy: uses cytological information such as chromosome number, structure, and behavior to resolve classification difficulties.
- Chemotaxonomy: uses the chemical constituents of plants to resolve classification confusions.
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Description
Quiz on phylogenetic classification systems, evolutionary relationships, and numerical taxonomy.
