10 Questions
What type of speciation involves speciation occurring within a parent species while remaining in one location?
Sympatric speciation
In sympatric speciation, why is it less likely to have more than two species formed at one time?
It is conceptually unlikely
What mechanism prevents the free-flow of alleles in geographically discontinuous populations?
Gene flow
What leads to the divergence in allele frequencies at numerous genetic loci between geographically separate populations?
Genetic drift
What factor plays a significant role in causing natural selection to favor divergent adaptations in geographically separated populations?
Predators and competitors
According to the passage, what is the biological definition of a species?
A group of actually or potentially interbreeding individuals
What does the passage suggest about hybrids between similar species?
The presence of hybrids suggests the speciation process may not be complete.
According to the passage, what are the two broad categories of mechanisms for speciation?
Geographic separation and reproductive isolation
What did Darwin envision the process of speciation to be?
A branching event, as diagrammed in On the Origin of Species
What is required for speciation to occur, according to the passage?
Reproductive isolation of two new populations
Explore the concept of species in biology, focusing on the definition that relies on interbreeding individuals. Learn how species are distinguished based on the potential to produce fertile offspring. Discover exceptions to this rule in nature.
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