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

Option B  

Explanation:  

The micro nutrients can be defined as the nutrient that is required by the body in trace amount. They are required relatively in smaller amounts.

They are vitamins and minerals and for a good health our body requires it in micro gram and milligram. They are required to perform the vital function of the body.  

Minerals and vitamins are required for the growth and development of bones, teeth and electrolyte balance of the body.

Example: We might take 200 grams of carbohydrate (macro nutrient) but we will have only 18 mg of iron (micro nutrient) for the body

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation: