Plasma is the liquid component of blood, in which the red blood cells, white blood cells, and platelets are suspended. It constitutes more than half of the blood's volume and consists mostly of water that contains dissolved salts (electrolytes) and proteins.
Cognitive development is the first period of infant called Piaget. During the sensorimotor stage, the child task is to use their sense and skills to understand the thing around them and explore what the world has. Infants reach the stages of Piaget’s sensorimotor intelligence earlier than the Piaget prediction.