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.
If the sperms fail to make it into the cervix, the acidic conditions in the vaginal canal make it impossible for them to survive longer than a few hours; If they manage to do that, they can survive for up to 3-4 days; Under these ideal circumstances, sperm can survive for up to 7 days. Around ovulation time, a womanâs body produces cervical mucus that makes the conditions in the vagina favorable for sperms, which makes it much easier for them to go beyond the cervix and into the fallopian tubes.