I am pretty sure the answer is organism! Hope I helped!
Answer:
A) Neither; they both have the same frequency.
Nitrogen is so important to plants because it is a major component of chlorophyll , or the compound by which plants use sunlight energy to produce sugars from water and carbon dioxide (photosynthesis). It is also a major component of amino acids, the building blocks of proteins for plants.
Organisms that obtain their from eating energy compounds from other organisms
