New species develop when a diverging species mate exclusively. b diverging species mate with multiple members of the other species. c diverging species recognize many potential mates among both species. d diverging species no longer recognize one another as potential mates.

New species develop when:

D. Diverging species no longer recognize one another as potential mates.

Explanation:

The development of two or more new species from ancestral population is known as speciation.Speciation can occur when the population divides into groups and each group occupies a different habitat (geographic isolation)  or when the members of the same population do not find one another as potential mate and do not interbreed (reproductive isolation mechanism).The three types are: Allopatric speciation.    

                                          Sympatric speciation.

                                           Parapatric speciation.

Allopatric speciation occurs when genetic divergence is allowed through  geographic isolation.Sympatric speciation does not involve geographic isolation but involves reproductive isolation mechanisms.In Parapatric speciation, a population enters a new niche or habitat within the range of parent species and then evolution of reproductive isolation mechanism occurs.

The gens present in the dna in the nucleus of the cell in the body