Those are minerals. Another mineral is e.g. sodium.
One hydroponic nutrient in a plant is water. Water is an essential nutrient for all life. Another hydroponic nutrient in plants is magnesium sulphate.
toxin?Another possibility might be "poison."Another answerunhealthy, junk food
The answer varies from one nutrient to another and, without more specific information, there can be no sensible answer.
The dead organic matter are an example of nutrient cycle and can sometimes be buried under sediment, rendering the carbon unavailable to living organisms.
Two groups of people who are prone to nutrient deficiencies are pregnant women and teenagers.
Protein, calcium, and phosphorous
the processes by which nutrients are transferred from one organism to another.
The small intestine is to nutrient absorption as the blood is to nutrient distribution.
plant food, vegitative nutrient but maybe a little light on it if your growing weed..if its another plant well im not exactly the expert but i would say plant food, vegitative nutrient or if it is a newly sprouted plant then root booster nutrient.
protect is one, i think allowing nutrient's inside is another, i'm not sure about the third
limiting factor