Answer:
I don't think that's a condition, the vacuole is like a storage area so it would make sense for it to store water.
Answer:
The answer is D. Which ethical standards are applied.
Explanation:
Ethical standards are principles which are made or created by organization or country to communicate its underlying moral value.
These ethical standards are not general, this means that each country has the right to make standards that meaningful or useful for their country.
From the question you can immediately infer that it's either B or D, as A and C basically mean the same thing and it isn't anything related to a microscope. I can tell you now that you don't need an electron microscope to see cells, they're only required for the atomic level.
Therefore, the answer is B, as you can't see cells without a microscope but you only need a light microscope, not an electron microscope.
