Refer to the Map Below

question 42

Multiple Choice

Refer to the map below. DNA analysis showed that one species of rat diverged over several thousand years to become two species.Rat species A lived in the Ethiopian biogeographic region, whereas species B lived in the Oriental region.This suggests that the process leading to divergence of the two rat species is

• A) dispersal.
• B) vicariance.
• C) biogeography.
• D) converging of land masses.
• E) biotic interchange.

---

Definitions:

Methoxymethane

Another name for dimethyl ether, a colorless gas used as an aerosol propellant and a refrigerant.

Ethoxymethane

A chemical compound also known as diethyl ether, characterized as a highly volatile and flammable liquid used as a solvent and anesthetic.

Ethoxyethane

Also known as diethyl ether, a highly volatile and flammable organic compound used historically as an anesthetic and a solvent.

Diethyl Ether

A highly volatile, flammable liquid used primarily as a solvent and as an anesthetic historically.