Vocabulario biologia

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Vocabulary #18

1. Taxonomy: discipline of classifying organisms and assigning each organism a universally accepted name.

2. Binomial Nomenclature: classification system in which eachspecies is assigned a two-part scientific name.

3. Genus: group of closely related species, and the first part of the scientific name in binomial nomenclature.

4. Taxon: group or level oforganization into which organisms are classified.

5. Family: group of genera that share many characteristics.

6. Order: group of similar families.

7. Class: group of similar orders.8. Phylum: group of closely related classes.

9. Kingdom: large taxonomic group, consisting of closely related phyla.

10. Phylogeny: the study of evolutionary relationships amongorganisms.

11. Evolutionary Classification: method of grouping organisms together according to their evolutionary history.

12. Derived Character: characteristic that appears in recent parts of alineage, but not in its older members.

13. Cladogram: diagram that shows the evolutionary relationships among a group of organisms.

14. Molecular Clock: model that uses DNA comparisons toestimate the length of time that two species have been evolving independently.

15. Domain: most inclusive taxonomic category; larger than a kingdom.

16. Bacteria: domain of unicellularprokaryotes that have cell walls containing peptidoglycan.

17. Eubacteria: kingdom of unicellular prokaryotes whose cell walls are made up of peptidoglycan.

18. Archaea: domain ofunicellular prokaryotes that have cell walls that do not contain peptidoglycan.

19. Archaebacteria: kingdom of unicellular prokaryotes whose cell walls do not contain peptidoglycan.

20. Eukarya:domain of all organisms whose cells have nuclei, including protists, plants, fungi, and animals.

21. Protista: kingdom composed of eukaryotes that are not classified as plants, animals or fungi....
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