Yes the chemical nutrients can be recycled in the ecosystem.
The small intestine is to nutrient absorption as the blood is to nutrient distribution.
possibly no it is not a nutrient
Sodium chloride is not a nutrient.
yes carbohydrate is a nutrient
nutrient missing in asthma
primary nutrient deficiency is caused by lack of intake of said nutrient (deficiency is caused by not consuming the nutrient in adequate amounts)
a limiting nutrient
red pepper's nutrient
Yes
nutrient
Calcium
The forgotten nutrient and the most important is water.