Ch. 18 Flashcards
Genus
A grip of similar species
Binomial nomenclature
Each species is assigned a two-part scientific name
Systematics
The science of naming and grouping organisms
Taxa
Groups that have biological meaning
Family
In classification, group of similar genera
Order
In classification, a group of closely related families
Class
In classification, a group of closely related orders
Phylum
In classification, a group of closely related classes
Kingdom
Largest and most inclusive group in Linnaean classification
Phylogeny
The evolutionary history of lineages
Clade
A group of species that includes a single common ancestor and all descendants of that ancestor - living and extinct
Monophyletic group
Includes a single common ancestor and ALL of its descendants
Cladogram
Links groups of organisms by showing how evolutionary lines or lineages branched off from common ancestor
Derived character
A trait that arose in the most recent common ancestor of a particular lineage and was passed along to its descendent a
Domain
A larger, more inclusive category than a kingdom
