In mammalian brain anatomy, the prefrontal cortex (PFC) is the cerebral cortex which covers the front part of the frontal lobe.The PFC contains Brodmann areas 9, 10, 11, 12, 46, and 47. third definition of the prefrontal cortex is the area of frontal cortex whose electrical stimulation does not lead to observable movements. For example, in 1890 David Ferrier used the term in this sense.
The blubber helps to keep them warm since they live in a very cold environment.   When harp seals are born, they have a white â¦ fur coat. The fur coat camouflages into the snow to protect them from their enemies on land.
Sperm do not live long without moisture. Sperm account for between two and five percent of the composition of semen. The semen provides a moist, nutrient rich environment for sperm according to News Medical. Once outside the body, the sperm will only live until the semen dries. Web MD states that semen can live longer inside water such as a bathtub or pool than on a dry surface, but the likelihood of the sperm finding its way into a woman's body from a pool of water is slim.