Which statement best defines micronutrients? a. micronutrients can be synthesized only by microbial organisms. b. micronutrients are required by the body in small quantities. c. micronutrients are essential only for infants and children. d. micronutrients are naturally made by the body.

A statement that best defines micronuterients is;

B. Micronutrients are required by the body in small quantities.

Micronutrients are crucial for people of all ages. They are important for many physiological functions which include but are not limited to; Iron, Molybdenum, Vitamins, Cobalt, Zinc, Iodine, Magnesium, Selenium, and Copper.

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.