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.
Dyspraxia (or Developmental Co-ordination Disorder) is a complex neurological condition, which affects muscle co-ordination and perception.Perception includes vision, hearing and proprioception, or the awareness of where your limbs are in space.yspraxia (or Developmental Co-ordination Disorder) is a complex neurological condition, which affects muscle co-ordination and perception.