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.
American White Pelican Description. The body of this Pelican, as you may have guessed by the name, is completely white. They have a very round body and a long neck. The bill is a light orange or tan color. They also have some yellow under the eyes.They can range in length from 50 to 67 inches. The bill itself can be up to 14 inches of that size.merican White Pelican Description. The body of this Pelican, as you may have guessed by the name, is completely white. They have a very round body and a long neck. The bill is a light orange or tan color. They also have some yellow under the eyes.