8 Questions
Which species concept defines species as groups that can be morphologically distinguished from one another?
Morphological (typological, morphospecies) species concept
According to the Biological Species Concept, species are defined as:
Interbreeding groups of populations, reproductively isolated from others
Which species concept defines species as the smallest identifiable monophyletic group?
Phylogenetic Species Concept
What does phylogenetic nomenclature use for defining taxon names?
Clades and their descendants
What regulates phylogenetic nomenclature currently?
International Code of Phylogenetic Nomenclature
What is the meaning of a taxon name in phylogenetic nomenclature?
The ancestor and all its descendants
What is another term for groups that consist of an ancestor and all its descendants in phylogenetic nomenclature?
Monophyletic
What is required to provide a full circumscription of a taxon in phylogenetic nomenclature?
Full phylogenetic tree
Study Notes
Species Concepts
- The Morphological Species Concept defines species as groups that can be morphologically distinguished from one another.
- The Biological Species Concept defines species as groups that can interbreed and produce fertile offspring.
Phylogenetic Nomenclature
- The Phylogenetic Species Concept defines species as the smallest identifiable monophyletic group.
- Phylogenetic nomenclature uses monophyletic groups for defining taxon names.
- The International Society for Phylogenetic Nomenclature (ISPN) regulates phylogenetic nomenclature currently.
- In phylogenetic nomenclature, a taxon name refers to a specific monophyletic group.
- A clade is another term for groups that consist of an ancestor and all its descendants in phylogenetic nomenclature.
- A full circumscription of a taxon in phylogenetic nomenclature requires a detailed description of the monophyletic group, including its characteristics and relationships.
Test your knowledge of species concepts with this quiz! Explore the morphological, biological, and phylogenetic species concepts and understand how species are defined based on morphology, reproductive isolation, and evolutionary relationships.
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