The appropriate response is Iron-fortified breakfast cereal or little measures of lean meat. Invigorated sustenances are nourishments to which additional supplements have been included. Cases of these supplements incorporate vitamin A, B vitamins, vitamin D, folic corrosive, iodine, and iron. The first reason for nourishment stronghold was to diminish the event of supplement inadequacies.
The answer or complement is D.unattractive
They are able to respond to the presence of invading organisms because they recognize the<u> antigen </u>on the surface of organisms. There are specific receptors on the surface of immune system cells.
