28.In man and other mammals the taste receptor cells are located in the fungiform papillae at the front of the tongue and in the foliate and circumvallate papillae at the back of the tongue. Among insects and other invertebrate animals, taste receptors are located in specialized hairs on the feet, legs, or body surface. ______ The first recordings of electrical impulses from taste cells were obtained in 1955 from a receptor of a fly. (A) The sensations perceived in the brain evidently result from a complex coding of the electrical impulses transmitted by the receptor cells. (B) A single taste receptor cell may alter its output of electrical impulses to any three or four of these so-called modalities (C) The tympanic membrane of the inner ear is mysteriously related to our perception of taste. (D) Often, smell plays an important role in the perception of many sensations considered to be tastes. (E) Because of the accessibility of taste receptors in some insects, much of the fundamental research on taste mechanisms has been conducted on these animals.