Yes
Macro nutrient because it's essential for the growth of the bacteria!
Phosphorous is a macronutrient.
micrp
Phosphorous is a macronutrient.
toilet and pauty
calcium
A micro-nutrient is a nutrient that is necessary for proper function but you only need in small quantities. For example iodine or zinc. A macro-nutrient is something you need in mass quantities. For example, glucose or proteins.
Yes. Proteins are needed in large amounts by the body, as protiens are used primarily to build and maintain body tissues, which you have a lot of.
Yes
I believe its Iron.
Oxygen is not considered a primary or secondary macronutrient. It is a non-mineral nutrient.