Which of the following statement is not a reason for cluster distribution of organisms? .
a.. localized availability of resources.
b.. herd behavior.
c.. hive behavior.
d.. territorial behavior

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.