What percent chance does a monozygotic twin have of developing schizophrenia when the other twin develops the disorder?
A. 10 percent
B. 25 percent
C. 50 percent
D. 100 percent
Answer: C
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The scientist who first demonstrated classical conditioning was:
Ivan Pavlov. B. F. Skinner. John B. Watson. Lev Vygotsky.
Emily is a single, 19-year-old mother who just couldn't manage to stop smoking during her pregnancy. Consequently, Emily runs a higher risk than many other women for a. becoming pregnant again right away
b. premenstrual dysphoric disorder (PMDD). c. post-partum depression. d. premenstrual syndrome.
Dog breeders apply which principle?
A. Mendelian genetics B. Natural selection C. Migration D. Artificial selection
Which of the following sensations results from decreased production of saliva?
A) Wooly mouth B) Wooden tongue C) Crispy cheeks D) Crackling teeth