Below are segments of the same protein from different species: T, W, X, Y and Z. The different amino acids are underlined and in bold. (Species T) (Species W) (Species X) (Species Y) (Species Z) The order of the closeness from high to low of the protein segments in the species W, X, Y and Z to that in the species T is . A > B means that A is closer to a given protein than B.