AP PSYCHOLOGY

Detailed explanation-1: -The brain’s olfactory (smell) center forms very early in fetal development. Studies have found that newborns have a keen sense of smell. Within the first few days they will show a preference for the smell of their own mother, especially to her breast milk.

Detailed explanation-2: -Even in their first 2 months, babies will kick their legs and wave their arms around. At 6 to 8 months old, your baby should be able to roll, reach and sit independently (if only briefly). Between 12 and 18 months, most babies are walking.

Detailed explanation-3: -Sight comes first, because the eye is such a specialized organ. Then come hearing, touch, smell, and taste, progressively less specialized senses.

Detailed explanation-4: -Hearing. The hearing system is fully-developed at 20 weeks gestation. At 23 weeks, an unborn baby can respond to loud noises or even begin to hiccup or kick if they hear a loud noise.