When parents set limits on a young child's television viewing they are shaping a child's executive functioning through which of these?

A(n) _____ infant can use information about the shape of a pacifier that they suck on

A) 1-month-old B) 4-month-old C) 6-month-old D) 8-month-old

Which of the following is a mechanism through which cigarette smoking typically impacts prenatal development?

A) Chemicals in cigarettes can increase blood supply to the fetus. B) Mothers gain more weight during their pregnancy. C) Cigarette smoking reduces the supply of oxygen that is available to the fetus. D) The fetus is born addicted to nicotine and must go through a process of detoxification.