Intellectual disability has been associated with several recessive gene pairings. One causes an absence of or an extreme deficiency in phenylalanine hydroxylase, an enzyme that metabolizes phenylalanine. The acronym (initials) for this disorder are

List four reasons why adolescent friendships that are high in trust and support contribute to psychological health and competence

What will be an ideal response?

According to the United Nations’ World Drug Report (2015), approximately what percentage of the global population uses cannabis?

a. 0.4% b. 4% c. 14% d. 24% e. 34%