An action potential is a very rapid change in membrane potential that occurs when a nerve cell membrane is stimulated. Specifically, the membrane potential goes from the resting potential (typically -70 mV) to some positive value (typically about +30 mV) in a very short period of time (just a few milliseconds).eurons can respond to stimuli and conduct impulses because a membrane potential is established across the cell membrane. In other words, there is an unequal distribution of ions (charged atoms) on the two sides of a nerve cell membrane.
Aardvarks are small pig-like mammals that are found inhabiting a wide range of different habitats throughout Africa, south of the Sahara. They are mostly solitary and spend their days sleeping in underground burrows to protect them from the heat of the African sun, emerging in the cooler evening to search for food.
An aardvark's tongue can be up to 12 in (30.5 cm) long and is sticky to help extract termites from the earthen mounds. Size relative to a 6-ft (2-m) man: Aardvarks live throughout Africa, south of the Sahara. Their name comes from South Africa's Afrikaans language and means earth pig..A glimpse of the aardvark's body and long snout brings the pig to mind. On closer inspection, the aardvark appears to include other animal features as well.It boasts rabbitlike ears and a kangaroo tailâyet the aardvark is related to none of these animals. glimpse of the aardvark's body and long snout brings the pig to mind. On closer inspection, the aardvark appears to include other animal features as well. It boasts rabbitlike ears and a kangaroo tailâyet the aardvark is related to none of these animals.