The density and variety of receptors vary in different regions. For example, in hairy skin the peritrichial endings are most common, but Merkel's discs and free nerve endings are also present. In glabrous (hairless) skin, free nerve endings are present, as are Merkel's discs and Meissner's corpuscles.
Since hydropower is powered by water, it’s a good fuel source. It will not contaminate the air like power plants that release fossil fuels, for example coal and oil. It does not rely on international fuel sources and lets each state make their own energy.
Pathogenic protozoa comprise a large number of eukaryotic microorganisms which are the causative agent of important parasitic diseases. Some affect human and are of high medical relevance as malaria, toxoplasmosis, leishmaniasis, the Chagas disease, sleepiness disease, amebiasis, giardiasis, and trichomoniasis.
Humans have 5 taste receptor cells.
sweet, salty, bitter, spicy, and umami
