The origin of species

In this topic

• The species and its criteria
• Allopatric (geographical) speciation
• Sympatric (ecological) speciation
• Isolation, microevolution and macroevolution, significance

Key terms

• Species
• Criterion of a species
• Range
• Gene pool
• Gene flow
• Reproductive isolation
• Allopatric speciation
• Sympatric speciation
• Polyploidy
• Sibling species
• Microevolution
• Macroevolution

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