Taxonomy
Naming and Classification
Hierarchic
Phylogeny
A system of ancestor descendent relationships
Systematics
Science of biodiversity and evolutionary history
Taxonomy
Phylogeny
Evolution
Decent with modification
Two Tenets of Evolution
1. Variation exists w/n populations and it is inherited
2. Natural selection filters thru this variation
Species
A unit of evolution
Biological Species
Group of populations whose members can interbreed, but cannot to produce viable offspring
Morphological Species
Group of populations whose members share the same set of defining characteristics
Phylogenic Species
Group of populations that are decended from a common ancestor and share a common set of characters b/w themselves and their common ancestor.
Population Genetics View
Change in Allele frequencies w/n a population over a period of time
Organismal Biology View
Change in organism development over time
Monophyletic group
Group includes common ancestor and all decedents
Synapomorphy
Shared Derived Character
Plesiomorphy
Ancestor Character
Homoplasy
Character that has evolved independently in different groups
Taxonomy
Naming and Classification
Hierarchic
Phylogeny
A system of ancestor descendent relationships
Systematics
Science of biodiversity and evolutionary history
Taxonomy
Phylogeny
Evolution
Decent with modification
Two Tenets of Evolution
1. Variation exists w/n populations and it is inherited
2. Natural selection filters thru this variation
Species
A unit of evolution
Biological Species
Group of populations whose members can interbreed, but cannot to produce viable offspring
Morphological Species
Group of populations whose members share the same set of defining characteristics
Phylogenic Species
Group of populations that are decended from a common ancestor and share a common set of characters b/w themselves and their common ancestor.
Population Genetics View
Change in Allele frequencies w/n a population over a period of time
Organismal Biology View
Change in organism development over time
Monophyletic group
Group includes common ancestor and all decedents
Synapomorphy
Shared Derived Character
Plesiomorphy
Ancestor Character
Homoplasy
Character that has evolved independently in different groups