The ABO system consists of A, B, AB, and O blood types. People with type A have antibodies in the blood against type B. People with type B have antibodies in the blood against type A. People with AB have no anti-A or anti-B antibodies.
Developmental dyslexia, or specific reading disability, is a disorder in which children with normal intelligence and sensory abilities show learning deficits for reading.
Dyslexia is the most common learning disability in children and persists throughout life. The severity of dyslexia can vary from mild to severe. The sooner dyslexia is treated, the more favorable the outcome. However, it is never too late for people with dyslexia to learn to improve their language skills.Dyslexia can go undetected in the early grades of schooling.Children can become frustrated by the difficulty in learning to read.owever, it is never too late for people with dyslexia to learn to improve their language skills. Dyslexia can go undetected in the early grades of schooling. Children can become frustrated by the difficulty in learning to read.