[align=left]If the sense of touch is the only one,

why does these facilities for different kinds of touch happen more often in particular areas of the body and in different forms.[/align]
[align=left]Because they need to recive diffrent information.

Without a nose I cannot smell and differentiate different odors. With plain touch I can differentiate different temperatures.[/align]
[align=left]The receptors within the nose are much more acute than the nerves in your hand. It isn't your nose that smells its the nerves in the nasal cavity which can also detect heat, wouldn't try it as said they're more acute.

Without ears I cant diffentiate quiet noises in the background. [/align]
[align=left]Without ear drums no. They are made to recive sound waves which have to be picked up by the ear drum to send signals to the brain.[/align]
[align=left]All have the same recive and transmit function and need to recive the nessary information in its varying formats to then send the signal to the brain an object/vibration/light must all touch the receptors.
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