____________________ involves repetitive motor activity, such as rolling a ball or running and laughing.
Fill in the blank(s) with correct word
Question 2By about ____ months after conception, males and females show distinct external genital structures.
a. two c. four
b. three d. five
Question 3When preschoolers are asked what they like about their friends, they typically mention the ____________________ and ____________________ they share. On the other hand, primary schoolchildren usually report that their friends are the children with whom they ____________________ and ____________________.
Fill in the blank(s) with correct word
Question 4Sexual differentiation occurs:
a. during the germinal period.
b. as a result of the presence of the X chromosome.
c. because of the presence of secondary sex characteristics.
d. during the embryonic period.
Question 5Parents tend to be more ____________________ when raising later-born children.
Fill in the blank(s) with correct word
Question 6The neural tube becomes the _____ during the prenatal period of development.
a. central nervous system c. muscular system
b. digestive system d. arm buds and leg buds
Question 7____________________ and ____________________ children perform better academically and are more cooperative than ____________________.
Fill in the blank(s) with correct word
Quick Reply
