Blood group B individuals have the B antigen on the surface of their RBCs, and blood serum containing IgM antibodies against the A antigen. Therefore, a group B individual can receive blood only from individuals of groups B or O (with B being preferable), and can donate blood to individuals with type B or AB.
Language development usually signals the development of memory and the understanding required to get time out. . Dr. Sears recommends starting time out at 18 months and expects that toddlers will understand it by 2. . For toddlers many developmental experts recommend natural consequences rather than or along with timeouts.
Also, many parents choose to wait until their child is six to start kindergarten. It really depends on your child when you choose to send him to kindergarten as long as it is within the normal age ranges. Some five year olds are right on schedule and can easily start kindergarten while other children need a little more time to mature before they begin.