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Chapter 17
Speciation and Macroevolution
Term | Definition |
---|---|
Speciation | The splitting of one species into two or more species. |
Taxonomist | A scientist who classifies organisms into groups. |
The Father of Taxonomy | Linnaeus. |
Morphology | The difference in a species appearance. |
Diagnostic Traits | Distinct physical characteristics. |
The Three Species concepts | 1. Morphological Species Concept. 2. Evolutionary Species. Concept. 3. Phylogenetic Species Concept. |
Cryptic Species | Species that look almost Identical but are very different in other traits, such as habitat use or courtship behaviors. |
Phylogeny | An evolutionary family tree. |
Monophyletic | A branch of a Phylogeny that contains all of the descendants of common ancestor. |
Polyploidy | A chromosome number beyond the diploid (2) number. |