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.
Selective breeding is a method of breeding that allows only those individual organisms with desired characteristics to produce the next generation. Humans use selective breeding, which takes advantage of naturally occurring genetic variation, to pass desired traits on to the next generation of organisms.