Bees are essential pollinators in the garden. Having ground-nesting wasps and mining bees in your garden is beneficial: they're predators to harmful garden pests, pollinate your plants and their underground burrows aerate the soil.
The areas of the tongue sensitive to tastes. The classical theory about the physiology of taste recognizes the existence of four fundamental tastes - sweet, salty, sour and bitter - each being perceived by specific areas of the tongue by means of gustatory receptors, also known as taste buds.
Taste is the sensation produced when a substance in the mouth reacts chemically with receptors of taste buds. Taste, along with smell (olfaction) and trigeminal nerve stimulation (which also handles touch for texture, also pain, and temperature), determines flavors, the sensory impressions of food or other substances.