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.
Zebras are herbivores, which means they eat only plants and grasses. They do not eat any meat. Grass is the main part of their diet, but they also like to eat shrubs, herbs, twigs, leaves and bark.So now you know what zebras eat!Facts About Zebras. 1  Baby zebras are known as foals.2  Male zebras cannot breed until they are 5-6 years old. 3  Some species of zebra have been hunted to extinction.hey do not eat any meat. Grass is the main part of their diet, but they also like to eat shrubs, herbs, twigs, leaves and bark. So now you know what zebras eat! Facts About Zebras. 1  Baby zebras are known as foals. 2  Male zebras cannot breed until they are 5-6 years old. 3  Some species of zebra have been hunted to extinction.