In living systems, the predominant organic molecules are , which are largely responsible for the structure, behavior, and unique qualities of a cell.

answer; i believe that the correct answer is ; males are hemizygous for the x chromosome;

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.

answer; ///segregation;