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Chapter 17

Speciation and Macroevolution

TermDefinition
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.
Created by: Shirone
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