Any nutrient that cannot be made by the body and must be supplied by food is called an "essential" nutrient. For example, humans cannot make Omega-3 fatty acids but they are necessary for life, so we call them an essential fatty acid.
A nutrient found naturally in many foods would be a mineral, just in general.
these are standardized values for the nutrient content of foods.
Water
Soluble because nonsoluble are stored in the body.
It depends on how you define nutrient. Oxygen is an oxidizing agent. The foods you eat are generally reducing agents. Reducing agents and oxidizing agents react to form new compounds with the release of energy. I suppose it could be considered a nutrient but this term is usually used for the energy containing component of food.
Nutrients are supplied to the body through the food we eat and the air we breathe.
A nutrient found naturally in many foods would be a mineral, just in general.
The food which is supplied in the ocean are known as sea foods
Nutrient dense foods provide the maximum nutrients for least amount of calories.
energy
Foods that do not follow nutrient density and contain less nutrients that calories. Ex. chocolate ice cream cookies cake
Fiber
Nutrient dense foods leave one feeling satisfied.
nutrient density
Carbohydrates and simple sugars.
yes
these are standardized values for the nutrient content of foods.