As a result, your immune system attacks healthy cells. Depending on the type, an autoimmune disease can affect one or many different types of body tissue. It can also cause abnormal organ growth and changes in organ function.There are as many as 80 types of autoimmune diseases.s a result, your immune system attacks healthy cells. Depending on the type, an autoimmune disease can affect one or many different types of body tissue. It can also cause abnormal organ growth and changes in organ function.
The diet of pelicans usually consists of fish, which can be up to 30 cm (1 ft) long, but amphibians, turtles, crustaceans and occasionally birds are also eaten. Aquatic prey is most commonly taken at or near the water surface.
A pelican has many adaptations that help it catch the fish it eats. Air pockets in its bones help the bird An animal that has wings and is covered with feathers. Birds have a backbone, are warm-blooded, produce young from eggs, and walk on their two legs. Most can fly. float. Webbed feet The feet of some birds, such as ducks, some mammals, such as otters, or some reptiles, such as turtles, where the toes are connected near the tips by a thin membrane of skin. This helps these animals paddle or swim through water. are perfect for paddling along the surface of the water.