Some cells enter G temporarily until an external signal triggers the onset of G1
True or false

check for the pregnancy rating of drug. if its class c or d see if other alternatives

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.