What conflict does Erikson believe occurs during his last stage?

Research suggests which of the following is true regarding the nature-nurture debate?

A) Psychological traits are mostly determined by genes. B) Psychological traits are mostly determined by environmental factors. C) Genes and environment both independently influence traits, but do not interact. D) Some psychological traits are more influenced by genes, while others are more the result of environment.

According to the text, about what percent of sexually active teenagers in the United States today have a sexually transmitted disease?

a. 5% b. 20% c. 33% d. 50%