Its easy its like the most popular graphs u usually hear.
When the two populations can no longer interbreed.
Two populations have evolved into two species when the populations can no longer interbreed.Are you answering a question from the Holt Science & Technology: Life Science textbook? Because these questions are my homework. :P
That there is no difference between the means for the two populations.
decreases genetic difference between two populations
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When the two populations can no longer interbreed.
China and India
on your fingers and on your toes
Italy and the United Kingdom have populations between 59 and 60 million people.
Both populations will become more genetically diverse.study island
The border across which genes can flow between two populations is called a "gene flow barrier." This barrier can be physical, such as a mountain range or river, or it can be due to behavioral or ecological factors that limit gene exchange between populations.
Different selective pressures were acting upon the two populations, leading to an increase in genetic variation and the formation of two new species. study island