Teratogens are particularly harmful to the embryo in the early stages of pregnancy because:
A. The immune system has not yet developed
B. teratogens only cross the placenta during the early weeks after conception
C. this is when the organs and systems are developing the fastest
D. the embryo is very small with fewer cells as protection
C. this is when the organs and systems are developing the fastest
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Development of ASL skills among the deaf supports the idea that
a. language development is biologically based. b. creole develops from simpler pidgin. c. Broca's area has been fast-mapped by anatomists. d. phonological awareness is essential for comprehension.
In a correlational design, researchers __________
A) gather information on individuals without altering their experiences B) divide events and behaviors of interest into two types: dependent and independent variables C) use an evenhanded procedure to assign people to two or more treatment conditions D) directly control or manipulate changes in the independent variable
Alloparenting is usually provided by all of the following except
a. fathers. c. older sisters. b. grandmothers. d. older brothers.
Why is it difficult for preschool-age children to use memory strategies?
What will be an ideal response?