Chapter 5

Question 1

In the twenty-first century in developed nations, what percentage of 1-month-olds will live to adulthood?

a. 17 percent
b. 36 percent
c. 85 percent
d. 99.9 percent

Answer 1

d. 99.9 percent

Question 2

The outer layers of the brain are referred to as:

a. the cortex
b. axons
c. dendrites
d. synapes

Answer 2

a. the cortex

Question 3

____ is the thick, high-calorie fluid that is secreted by a new mother’s breasts in the days immediately following birth.

a. Formula
b. Colostrum
c. Breast milk
d. Immunization

Answer 3

b. Colostrum

Question 4

Transient exuberance is the:

a. high energy that toddlers experience following a nap
b. rapid growth of dendrites during the first few years of life
c. friendliness that infants display prior to the onset of stranger wariness
d. rapid growth of axons during the first few years of life

Answer 4

b. rapid growth of dendrites during the first few years of life.

Question 5

Renee is concerned because her son is 13 months old and is starting to walk before learning to crawl. What advice would a pediatrician give to Renee?

a. She should not let her son continue to walk until he has learned to crawl.
b. He needs to be tested because this may be a sign of a serious learning disability.
c. She should wait another month or so to see if he crawls and walks at the same time.
d. She should not be worried since some babies do not crawl.

Answer 5

d. She should not be worried since some babies do not crawl

Question 6

Clean water, immunizations, and nourishing food have all had a dramatic impact on _____.

a. infant and child mortality
b. maternal education levels
c. population constriction
d. rates of violence

Answer 6

a infant and child mortality

Question 7

Evidence for the importance of practice and opportunity in the development of fine motor skills was provided by infants who:

a. spontaneously practiced grabbing more than other infants did
b. were given “sticky mittens” to grab with
c. played hand games with their parent more often
d. had mastered gross motor skills earlier

Answer 7

b. were given “sticky mittens” to grab with

Question 8

The ability to move and control some parts of the body is referred to as

a. instinct
b. facilitation
c. motor skills
d. refex

Answer 8

c. motor skills

Question 9

Co-sleeping may be harmful to the baby if the mother:

a. is in a fetal position around the baby
b. is a light sleeper
c. has been drinking
d. awakens frequently

Answer 9

c. has been drinking

Question 10

By 2 months of age, babies not only stare at faces but also smile at them. This change is due to _____.

a. increased interest in other humans
b. increased awareness of caregivers’ identities
c. changes in willingness to interact with adults
d. improvements in vision

Answer 10

d. improvements in vision