Some scientists would say that nucleic acids are the most important molecules in living cells; other the suggest that proteins are more important; and some might say that life could not continue without a supply of carbohydrates. Write a sentence in support of each of these points of view.

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link:

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.

b is the answer and if you need further with anything message me