The answer is geographic because once the species separate they may evolve differently creating new species.
Answer:
to get rid of carbon dioxide, along with it being necessary to yknow... continue living.
Explanation:
"Scientists believe that the interior structure of Mercury includes ametallic<span> core, an intermediate </span>rocky<span> layer, and a </span>thin brittle<span> crust. The composition of Mercury is probably high in iron, although surface features indicate that </span>volcanic activity once existed at the surface." -<span>windows2universe</span>
The correct response is a) multicellular organisms.
