FDA drops over-the-counter age limit for Plan B One-Step June 20, 2013 | By Amina Khan Plan B One-Step, an emergency contraceptive, was approved by the Food andâ¦
Definition of micronutrient - a chemical element or substance required in trace amounts for the normal growth and development of living organisms. Definition of micronutrient - a chemical element or substance required in trace amounts for the normal growth and development of living organisms. dictionary thesaurus
  Essential micronutrients include iodine, iron, vitamin A and folate.   A nutrient is a substance used in an organism's metabolism which must be taken in from the en â¦ vironment. Non-autotrophic organisms typically acquire nutrients by the ingestion of foods. Essential micronutrients include iodine, iron, vitamin A and folate.   A nutrient is a substance used in an organism's metabolism which must be taken in from the en â¦ vironment. Non-autotrophic organisms typically acquire nutrients by the ingestion of foods.