Biology: Chapter 18 Vocabulary Words

Vocabulary  

24 cards   |   Total Attempts: 182
  

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Discipline of classifying organisms and assigning each organism a universally accepted name.
Taxonomy
Classification system in which each species is assigned a two-part scientific name.
Binomial nomenclature
Group of closely related species, and the first part of the scientific name in binomial nomenclature.
Genus
Group or level of organization into which organisms are classified.
Taxon
Group of genera that share many characteristics
Family
Group of similar families
Order
Group of similar orders
Class
Group of closely related classes.
Phylum
Large taxonomic group, consisting of closely related phyla.
Kingdom
The study of evolutionary relationships among organims.
Phylongeny
Method of grouping organisms together according to their evolutionary history.
Evolutionary classification
Characteristic that appears in recent parts of a lineage, but not in its older members.
Derived character
Diagram that shows the evolutionary relationships among a group of organisms.
Cladogram
Model that uses DNA comparisons to estimate the length of time that two species have been evolving independently.
Molecular clock
Most inclusive taxonomic category; larger than a kingdom.
Domain