Between two and three years of age, children become increasingly effective at delaying their behavior.
Indicate whether the statement is true or false
Question 2
The principle of teratogenic response suggests that
a. teratogenic effects occur similarly in any susceptible organism.
b. teratogens do not show the same effects uniformly in prenatal development.
c. mere access of a teratogen through the placenta is a guarantee of some effects.
d. teratogens produce effects in fetuses only when they are harmful to the mother as well.
H. erectus migrated out of Africa beginning about 1.8 million years ago and is first known from Geor
A levallois core from Kapedo Tuffs, Kenya dates about 130,000 years ago.
Many former slaves understood that illiteracy was an implement of bondage. The Freedmen’s Bureau bui
Review Cognitive Changes over the Adult Years
An overlapping record extends back thousands of years of tree ring width
Cognitive Development in Children