The embryonic stage of prenatal development begins with fertilization and ends with the implantation of the fertilized egg in the uterus.
a. true
b. false
Ans: b. false
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According to the concept of sexual selection, those characteristics that give males greater access to mates
a. are likely to become less common over successive generations. b. are likely to become more common over successive generations. c. lead to the development of similar characteristics in females. d. are also likely to make males less aggressive and less able to survive and reproduce.
Studies have found that in multi-ethnic families, ____ are the key to helping children establish their ethnic identities
a. fathers b. siblings c. mothers d. grandparents
Delusions, hallucinations, disorganized speech, disorganized behavior, and decreased emotional expression characterize:
A. schizophrenia B. depression C. somatoform disorders D. generalized anxiety disorder
____ tend to have the most intense feelings concerning death
a. Young children b. Adolescents c. Young adults d. Older adults