Question 1
Which of the following is the most likely reason that infants of historically underrepresented groups are more likely to be of low birth weight?
◦ genetic differences in stature and body mass
◦ systematic differences in temperament of the parents
◦ the presence of teratogens among some cultural groups
◦ poverty and cultural barriers to health and nutrition services
Question 2
An infant is born 3 weeks before the end of the full gestation period and weighs only 4 1/2 pounds. Which prediction is most accurate regarding her long-range development?
◦ She may suffer serious medical problems - such as meningitis - and will be more often afflicted throughout life with mild illnesses - such as respiratory infections. Her intellectual development will be similar to those born full-term.
◦ She may show early delays but, with early intervention and positive parenting, will gain weight and likely show few signs of difficulty in later childhood.
◦ She may be delayed in intellectual and physical areas throughout much of childhood but will be unaffected socially and emotionally.
◦ She will develop typically and within the range of normalcy for infants born in America.
Many mothers pump their breast milk so that fathers can be involved in infant feedings
24 weeks old human fetus
An infant lying in the crib, looking at the mobiles hanging above him.
Infant with spina bifida
If the period of a square wave is 22 ms, what is its frequency?
Percentage of Full Tryptophan Expression for trpR+ and trpR- Strains