Thus, for the tick, the umwelt is reduced to only three ( biosemiotic ) carriers of significance: ( 1 ) The odor of butyric acid, which emanates from the sebaceous follicles of all mammals, ( 2 ) The temperature of 37 degrees celsius ( corresponding to the blood of all mammals ), ( 3 ) The hairy typology of mammals.
Thus, for the tick, the umwelt is reduced to only three ( biosemiotic ) carriers of significance: ( 1 ) The odor of butyric acid, which emanates from the sebaceous follicles of all mammals, ( 2 ) The temperature of 37 degrees celsius ( corresponding to the blood of all mammals ), ( 3 ) The hairy topography of mammals.
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