These genetic variants are believed to cause changes in the way the bodyâs T cells behave. T cells are immune system cells that normally fight off harmful invaders, such as viruses and bacteria. In people with psoriasis, however, T cells also attack healthy skin cells by mistake. This immune system response results in a range of reactions, including: 1  enlargement of blood vessels in the skin.  increase in white blood cells that stimulate the skin to produce new cells more quickly than usual.
Teeth. Zebra have several types of teeth that help them survive in their habitats. In the front of their mouths, zebra use their strong incisors for biting off grass and other vegetation. In the rear of their mouths, zebra have molars and premolars to grind down their food.
(Felis concolor). Mountain lions require a lot of roomâonly a few cats can survive in a 30-square-mile range. They are solitary and shy animals, seldom seen by humans. Mountain Lions are extremely agile creatures. Their long hind limbs allow them to cover a distance of 40 feet in a single leap.he lifespan in the wild for a Mountain Lion, if they do live past those crucial first couple of years, ranges from 8 to 13 years. This is compared to 20 years for those that are born and raised in captivity.