Medical Definition of PREFRONTAL CORTEX. : the gray matter of the anterior part of the frontal lobe that is highly developed in humans and plays a role in the regulation of complex cognitive, emotional, and behavioral functioning.ADVERTISEMENT.noun. the gray matter of the anterior part of the frontal lobe that is highly developed in humans and plays a role in the regulation of complex cognitive, emotional, and behavioral functioning.
What do Seals Eat? Seals find the foods that they need in the water around them, which is why you will only find them where there is plenty of water. Their primary sources of food include fish but they will consume just about any type of meat they can get in the water. Other types of food that they enjoy include squid, octopus, and shellfish. Sometimes food sources are low due to the big ships fishing for such items in the same waters as the seals hunt.
Food Web of an Arctic Ecosystem. At the top of the food web, the Polar Bear reigns. The only predator for the Polar bear is Man (not shown on this ecosystem chart). Polar bears eat the Arctic seal and the Atlantic salmon and has no predator thus for making it the top of its food web. Below is a list of who eats who: The Arctic seal is eaten by the polar bear and eats the Atlantic salmon. The polar bear eats the Atlantic salmon, and so does the arctic seal.