If your iron is low, eating a diet that is high in iron-rich foods such as fortified cereals, red meat, dried fruit, and beans may not be enough to give you what you need. Your doctor might recommend that you take an iron supplement.
selective. 1  having the function or power of selecting; making a selection. 2  characterized by selection, especially fastidious selection. 3  of or relating to selection. 4  Electricity, Radio. having good selectivity.
Best Answer: Selective media is a type of media that selects for the growth of one type of organism, while inhibiting the growth of others. An example of Selective media is MacKonkey Agar. MacConkeyâs Agar is selective for gram-negative bacteria, while inhibiting the growth of gram-positive bacteria.Blood Agar is solely a differential media. This media is a nutrient agar that is differential for hemolysis. It is based on the ability of a microorganism to destroy hemoglobin and red blood cells.nother good example of a media that is both selective and differential is EMB(Eosin-Methylene Blue.) EMB is selective for gram-negative bacteria, and differential for lactose fermentation.