19.1 Finding Order in Biodiversity Flashcards
(57 cards)
Taxonomy
System of naming and classifying organisms based on shared characteristics and universal rules
Binominal nomenclature
Classification system where each species is assigned a two-part name
Genus
A group of closely related species; the first part of the scientific name in binominal nomenclature
Species
Group of similar organisms that can breed and produce fertile offspring. It is a smaller taxa
Systematics
Study of the diversity of life and the evolutionary relationship between organisms
Taxa
Levels of organization into which organisms are classified
Order
Closely related families
Family
Closely related genera
Class
Closely related orders
Phylum
Closely related classes
Kingdom
largest, most inclusive taxonomic category
Domain
taxonomic category that is even larger than kingdom
Who developed the classification system?
Linnaeus
How many taxa did Linnaeus’ classification system have?
7
Based on what were the species organized within the classification system?
Differences and similarities
Name the taxa from most specific to most general
species, genus, family, order, class, phylum, and kingdom
What revealed scores of new and different characteristics?
Discoveries in genetics, cell biology, and development
What do biologists want classification to do nowadays?
Reflect Darwinian theory by grouping organisms into taxa to reflect how closely related they are to each other
The two kingdoms during Linnaeus’ time
Plantae and Animalia
Name the three domains
Bacteria, Archaea, Eukarya
Kingdom(s) under Bacteria
Eubacteria
Kingdom(s) under Archaea
Archaebacteria
Kingdom(s) under Eukarya
Plantae, Fungi, “Protista”, Animalia
Eubacteria cell type
Prokaryote
