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.
Most current definition: Dyslexia is a specific learning disability that is neurological in origin.It is characterized by difficulties with accurate and/or fluent word recognition and by poor spelling and decoding abilities.ost current definition: Dyslexia is a specific learning disability that is neurological in origin.