Answer: D. geographic isolation and reproductive isolation
Speciation can be defined as a evolutionary process by which a new species develop from a parent species. It occurs when the members of the species becomes reproductively isolated and physically get separated due to geographical barriers. In allopatric speciation, the ancestral population evolve into a new species due to geographical barriers like river which separate the two populations of the same species apart. In sympatric speciation, the ancestral population evolve into a new species due to the reproductive and behavioral isolation. This is due to the fact that the members of the two species becomes incapable of inbreeding.
Therefore,when carbon monoxide is present,it blind to hemoglobin preferentially over oxygn.As a result,oxygen cannot blind to hemoglobin ,so very little oxygen is transported through the body carbon monoxide is a colorless odorless gas and is therefore difficult detect.
Lewis structures are diagrams that represent the valence electrons of atoms within a molecule. These lewis structures help visualize the valence electrons of atoms and molecules, whether they exist as lone pairs or within bonds.
