A cell with the same amount of substance on it's inside as it's outside is said to be in: hypertonic
hypotonic
equilibrium
none of the above

your answer is rna to the question.

the answer is :

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.