Which of the following elements would be found in the LOWEST amounts in both the cell wall and cell membrane?

not sure if this is what you'r looking for eubacteria and archaebacteria

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.

its b. greenhouse gasses trap uv rays for heat so that the plants stay alive.