The process by which these groups form can be allopatric, sympatric, or peripatric.
The modern definition of these groups was proposed by Ernst Mayr, who advocated the use of a "biological concept" of it. A "keystone" group of this type, such as Pisaster, is an indicator of the effect of pollution. Theodosius Dobzhansky (dobe-ZAN-ski) gave a genetic explanation for the creation of these divisions, focusing on how they are created by reproductive (*) isolation. The process by which these groups form can be allopatric, sympatric, or peripatric. For 10 points, binomial nomenclature consists of genus along with what other taxonomic rank?
The modern definition of these groups was proposed by Ernst Mayr, who advocated the use of a "biological concept" of it.
{species}