Im not sure what the question is revolving this statement, but it is true and all lands will develop differently due to its geographic landscape
Fewer competitors of the global economy
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Hello!</h2>
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<u><em>B. Lyndon Johnson</em></u></h2><h2><em>Around then, Lyndon Johnson figured out how to persuade the Congress that letting Vietnam fell under socialist control would wreck the United States' impact in southeast Asia. This lead to military intervention that meant to spread democracy in Vietnam.</em></h2>
I believe the answer is: holding genetics constant while varying the environment.
This could be done by making the identical twins grow up in a different environment. If the behaviour that they displayed is exactly the same even if they grow up in a different environment, the only explanation for that is their behaviour is influenced by genetics, and vice versa.
