Answer:
DNA extraction is a routine procedure used to isolate DNA from the nucleus of cells. When an ice-cold alcohol is added to a solution of DNA, the DNA precipitates out of solution. If there is enough DNA in the solution, you will see a stringy white mass.
Explanation:
Waist circumference reflects the
degree of visceral fat in proportion to body fatness. Visceral fat is the
fat stored deeper in the skin such as the fat that surrounds the abdominal
organs and excess of it can increase the risk of serious health problems. When taking
the waist circumference, the body fat surrounding the waist is being measured
together with visceral fat.
I believe the correct answer is the final option - <span>If Earth formations can change over time, it is possible that even life on earth could change over millions of years.
Given that Darwin proposed his ideas about the origins of species and evolution, this is the only possible option to choose. It is impossible that life doesn't change at all, and millions of years are a long time to implement those changes. So it is only natural that organisms can change as much as the Earth can.
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The answer should be Epiphyseal<span> line</span>
