What is this for is it biology
I believe it is a 2:1 ratio of hydrogen to oxygen, because the way i learned was that carbon hydrogen and oxygen have a ratio of 1:2:1, respectively.
The answer would be A. carbohydrates (carbs) because carbs are generally composed of sugars and glucose (as an example) has the ratio between carbon, hydrogen and oxygen in a 1:2:1 ratio in its form: C6H12O6
Cell Membrane
Hope this helps =]
I think they will grow petter alone if they are not planted in the same pot. The one plant will absorb more nutrients from the soil it is planted in rather than if it was planted with another.