Which system includes the skin hair and nails and provides protection from the environment

Which of the following is an important function of child-directed speech? (a) it captures the infant’s attention and maintains communication. (b) it reduces the occurrence of infantile amnesia for the earliest memories of infancy. (c) it reduces the need for reciprocal interaction between caregivers and children. (d) it assists in prolonging rem sleep in infants.

List things you can lose your license for if you are under 21

Wjat are substances intentionally added to food to produce a desired effect?