Introduction to Classificaction (2.3.2) 0.0 / 5 ? BiologyEcology, ecosystems and environmental biologyASOCR Created by: recoveranddiscoverCreated on: 20-08-15 17:43 Describe short evolutionary distance. The more recent the common ancestor of two species, the more closely related the species are- they have a short evolutionary distance. 1 of 11 What is biological classification? The process of placing living organisms into groups. 2 of 11 What is taxonomy? Taxonomy is the study of the principles behind classification, and the study of the difference between species. 3 of 11 What is phylogeny? The study of evolutionary relationships between organisms. 4 of 11 How do scientists carry out classification? By looking at shared homologous features between different organisms. 5 of 11 What is the classification sequence? Kingdom, phylum, class, order, family, genus, species. 6 of 11 Why is it difficult to separate species as you go down the taxonomic groups? The species are more closely related to each other and have more shared homologous features. 7 of 11 What is the binomial system? 2 part Latin name. The first part is the genus, and the second part is the species. 8 of 11 How should the Latin name be written? The genus has a capital letter, the species has a lower case letter. The whole name should be written in italics or underlined. 9 of 11 Why is the binomial system used? It can be used worldwide, and avoids confusion from the use of common names which differ between countries, 10 of 11 What is a dichotomous key? Yes or no questions which lead on to more questions until it leads to the name of the specimen. 11 of 11
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