What illegal drug, when used during pregnancy, can restrict the oxygen that reaches the fetus and lead to infants who are irritable, nervous, and easily disturbed?

Desperate attempts to remain connected and in contact with others are characteristic of ________ personality disorder.

a. histrionic b. obsessive-compulsive c. avoidant d. borderline

Internationally, children aged 6 to 10 years are considered to be obese if ____

a. they eat more than 4,000 calories a day b. fail to exercise for more than 10 minutes per day c. have a BMI that exceeds 21 d. have 40% or more body fat