Choose all the answers that apply. antibodies are highly specific only work against certain antigens are produced by macrophages remain in the body even after the illness is over are part of the body's adaptive immunity

are highly specific only work against certain antigens

are part of the body's adaptive immunity

Antibody, also called as immunoglobulin, are proteins which are produced by the immune system of the organism against the action of the foreign substance, also called as antigen. Antibodies recognizes specific antigens, removes them from the body and provides the body immunity. Antibodies are specifically produced by the specialized white blood cells called as B lymphocytes.

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.