24 terms

Bio chapter 18 vocabulary

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Taxonomy
Classifying organisms and assigning each one a universal accepted name.
Binomial Nomenclature
Classification system in which each species is given two scientific names.
Genus
closely related species and first part in the binomial nomenclature name.
Taxon
Group or level of organization into which organisms are classified
Family
Genera group that have many of the same characteristics
Order
Broad taxonomic category that has similar families.
Class
group of similar orders.
Phylum
Several Different Classes
Kingdom
The largest of all taxoniomic categories, contains all animals and plants
Phylogeny
Study of evolutionary relationships between organisms.
Evolutionary Classification
Strategy of grouping organisms together on their evolutionary history.
Derived Character
Characteristics that appear in newer parts of lineage but not in the older members.
Cladogram
Diagram that shows evolutionary relationship among group of organisms.
Molecular Clock
model that uses DNA comparisons to estimate amount of time that two species have been evolving separately.
Domain
More inclusive category, larger than a kingdom
Bacteria
Unicellular and prokaryotic
Eubacteria
Domain bacteria corresponds to is the kingdom Eubacteria
Archaea
unicellular prokaryotic that live in some of the most extreme environments.
Archaebacteria
Domain Archaea corresponds to
Eukarya
consists of all organisms that have a nucleus
Protista
Kingdom that has eukaryotic organisms that cannot be said as animal's plants or fungi.
Fungi
Heterotrophy Most feed on dead or decaying organisms.
Plantae
Multicellular organisms that are photosynthetic meaning they make their own food.
Animalia
Multicellular and heterotrophic, do not have cell walls.