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13 Cards in this Set
- Front
- Back
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Put the seven taxonomic groups in order of hierarchy |
Kingdom Phylum Class Order Family Genus Species |
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Why do scientists classify organisms? |
To identify species To predict characteristics To find evolutionary links |
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What are the two parts of the scientific name of a species? |
First word indicates organisms genus (generic name) Second word indicates organisms species (specific name) |
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State some reasons as to why classification is important |
Enables scientists to share information Provides information about an organism, based on members of the same group Allows accurate identification of an organism |
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What are the five kingdoms? |
Prokaryotae Protoctista Fungi Plantae Animalia |
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What are the three domains? |
Bacteria Archaea Eukarya |
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What are the now six kingdoms? |
Eu bacteria Archaebacteria Protoctista Plantae Fungi Animalia |
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Why are Eubacteria and Archaebacteria separated into two groups I'd they are both single celled prokaryotes? |
Because the chemical makeup of Eubacteria is different. For example Eubacteria contain peptidoglycan in their cell wall whereas Archaebacteria do not. |
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What is Phylogeny? |
The name given to the evolutionary relationships between organisms. |
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Advantages of phlogenetid classification |
Phylogeny can be done without reference to Linnaean classification Phylogeny produces a continuous tree The hierarchical nature of Linnaean classification can be misleading as it implies different groups within the same rank are equivalent |
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Evidence for evolution |
Paleontology Comparative anatomy Comparative biochemistry Evolutionary embryology |
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Explain what Paleontology is and evidence provided by it |
Is the study of fossils Evidence provided by it... Simple organisms are found in the oldest rocks and more complex organisms are found in recent rocks The sequence in which the organisms are found matches their ecological links to each other By studying similarities in the anatomy of fossil organisms, scientists can show how closely related organisms have evolved from the same ancestor Fossils allow relationships between extinct and living organisms to be investigated |
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What is a homologous structure? |
A structure that appears superficially different in different organisms but has the same underlying structure. |
