i have the same curriculum and the same doubt .....what im gonna answer to you is nutrient
nutrient
Nitrogen needs to be fixed before it is used by plants.
All organisms need nitrogen because it is a component of all proteins and many other essential molecules.
because weeds absorb nutrients such as nitrogen and other essential minerals
People put nitrogen in fertilizers because nitrogen in the form of ammonium nitrogen is essential for a plant's growth.
Herbivores need nitrogen because it is essential for their metabolic systems and cellular structures.
Because they contain nitrogen, an essential nutrient for plants
Nitrogen is essential for living organisms because it helps plants grow, and plants supply animals their food. And without plants we would die.
All organisms need nitrogen because it is a component of all proteins and many other essential molecules.
Nitrogen oxide is not considered an acid because it does not dissociate in water.
Nitrogen oxide is not considered an acid because it does not dissociate in water.
Nitrogen, in the form of amino acids.