The net force on an object is just the sum of all outside forces. So the affect of any non-zero net force is to cause an acceleration in the direction of the force.
The best and most correct answer among the choices provided by the question is the fourth choice "<span>Crossing over during metaphase allows segments of DNA from 2 parents to SWAP and produce non-identical haploid cells."</span><span>
</span>Mutations are changes in the DNA. A single mutation can have a large effect, but in many cases, evolutionary change is based on the accumulation of many mutations. Gene<span> flow is any movement of </span>genes<span> from one population to another and is an important source of</span>genetic variation<span>.</span>
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Answer: any virus should be classified by or what it is
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Answer:
is the spread of something more widely
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