You show your baby his favorite toy and hide it behind your back. Your baby turns away and does not attempt to search for the toy. This shows that he has not achieved:
O temperament
attachment
conservation
morality
O object permanence

In multiple sclerosis, the immune system destroys the substance that coats and protects nerve fibers in the brain and spinal cord. this causes inflammation and injury to the nerves, and the axons don't conduct impulses as well.

Which of these is likely to be the best source of valid health information?

Which barrier to economic development is shown in the following examples? i. the high rate of hiv infection in underdeveloped nations ii. the use of children as soldiers in uganda’s army in the early 2000s iii. low literacy rates in underdeveloped nations with limited exposure to adequate education a. foreign debt b. political instability c. widespread disease d. low levels of social welfare