← Speciation Test
5 Written Questions
5 Matching Questions
- Doesn't apply to "cryptic species" which don't differ morphologically. Features are subjective and arbitrary. Some species are so small they have very few morphological characteristics.
- Triploid zygote
- Hybrid Speciation
- a A spllitting event that creates two or more distinct species from a single ancestral group.
- b 3n
- c Prezygotic Isolation Mechanisms
- d Hybrid offspring create a third, new species that had unique combinations of alleles from each parental species, and therefore different characteristics.
- e Issues with Morphospecies Concept
5 Multiple Choice Questions
- Natural selection for traits that isolate populations, because hybrid offspring have lower fitness than parents.
- Geographic area where interbreeding occurs and hybrid offspring are common
- Mutant individuals with more than 2 sets of chromosomes
- Speciaiton that begins with physical isolation
- Ways to define species
5 True/False Questions
Allopolyploid → Mutation results in a doubling of chromosome number all from same species
Fuse, Reinforcement, Hybrid Zones, Hybridization Speciation, Extinction → When isolated populations start mating
Doesn't apply to asexually reproducing organisms. Only applicable to living species. → Issues with Morphospecies Concept
Dispersal and Vicariance → A spllitting event that creates two or more distinct species from a single ancestral group.
Tetraploid → Mutant individuals with more than 2 sets of chromosomes