Answer:
Natural factors of population change can't be swayed by humans. So for an example of a natural factor take an Earthquake. As of right now we can only predict when Earthquakes will. Inevitably some things will still get damaged and that just can't be helped. An Artificial factor for population change is something specifically made by humans. For an example take a genocide. If some guy decides he wants to go on a killing spree, well all I can say is that is Definitely not natural. Hope that helped.
The answer is D if I might be correct
In this system, the sex of an individual<span> is determined by a </span>pair<span> of </span>sex chromosomes called the <span>gonosomes. Females typically have two of the same kind of </span>sex chromosome <span>(XX) and are called the homogametic </span>sex<span>. Males typically have two distinct </span>sex chromosomes<span> (XY), and are called the heterogametic </span>sex<span>.</span>
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