Determine the four allele combinations that would be listed along the axis of the Punnett square for a parent that is heterozygous for the color and texture characters (PpSs).

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.