Answer: D. A river separates members of a squirrel population that used to occupy the same geographical area.
Explanation:
Allopathic Speciation occurs when a geographic barrier (river, mountain, or canyon) separates members of a population
Hope this helps!
<span>Courtesy
is the example of which the three C’s. A courtesy is a polite remark or
respectful act. Complain about a bad meal, and you might get kicked out. But
the common courtesy is usually an apology from the manager and, if you're
lucky, a free dinner. </span>
A solution is a mixture where the individual components cannot be made out.
Sugar dissolves in water, which results in a mixture of sugar and water. When the sugar dissolves, it is invisible to the human eye, but still exists at a molecular level. This makes the mixture a solution, as you cannot separate the sugar from the water visibly. The answer will be D) A mixture of sugar and water.