If you have smelled this odor before, the brain recognizes and identifies it. If not - the brain remembers it until the next time. C. Different animals have different ranges of sensitivity in smelling. D. Smell and taste are related. V. Touch, Pressure, Pain, and Temperature A. Receptors in skin and internal organs pick up changes in touch, pressure, and temperature.
Senses are necessary to keep from danger, add enjoyment to life, and maintain homeostasis.