Dandelion is an herb. People use the above ground parts and root to make medicine. Dandelion is used for many conditions, but so far, there isnât enough scientific evidence to determine whether or not it is effective for any of them.
The olfactory epithelium is a layer of odor-sensitive cells located inside the depths of the nose. These cells react to odors as they enter the nose, sending signals to the olfactory bulb.
1) more receptor cells. bloodhounds' olfactory epithelium is 60 cm 2, contains300 million receptor cells, can detect much lower amounts 2) more kinds of receptors3) larger portion of their brains are devoted to processing smellcan detect odors that we can'tcan put it all together.