If a reference sample accidentally gets on blood evidence that is completely degraded, the only detectable DNA is from where?

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.

answercoenzymes;

answerwestern plateau,     central lowlands,     great dividing range;