Nancy and Paul are designing an experiment to measure the amount of honey produced by each of the bee hives they keep. What should Paul and Nancy do to ensure a fair comparison between all the hives? Create a scale that can measure the density of the harvested honey.
Take pictures of the combs before and after they are removed from the hive.
Document the number of honey-making bees per hive.
Establish a standard unit and method for measuring the honey.

I am choosing between C and D.
Can I please have an explanation too if possible.

Read this summary of a scientific theory: "cells are the most basic structural and functional units of life. all living organisms are made up of one or more cells. all cells that are alive in the world today came from pre-existing cells." which of the following would require this theory to be modified? -a.) a survey finds that a majority of people believe viruses carry out the basic processes of life. -b.) a prominent scientist says she feels strongly that one day the theory will be challenged by life on other planets. -c.) the dna of unicellular and multi-cellular organisms is shown to have many fundamental similarities. -d.) scientific observations show that microscopic organisms living in the deep ocean are not made up of cells.