Taking a folic acid supplement around the time of conception reduces by more than 70 percent
A) the risk of miscarriage.
B) infantile hypothyroidism.
C) the risk of Down syndrome.
D) abnormalities of the neural tube.
Answer: D
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Which theory proposes that a certain level of illusions can be helpful?
A. optimal margin theory B. social comparison theory C. social identity theory D. self-schema theory
Which of the following is NOT true of condoms?
a. They are the only widely available contraceptive device for males. b. They can be purchased without a prescription. c. The man should withdraw after completely losing his erection. d. They can be highly effective in preventing pregnancy and sexually transmitted diseases.
The zygote journeys to the uterus, where implantation occurs. Which stage is this?
a. the germinal stage c. the pre-embryonic stage b. the fallopian stage d. the pre-fetal stage
What defining element of REM sleep malfunctions in people who exhibit REM sleep behavior disorder?
a) tendency to dream b) elevated brain activity c) heightened sexual arousal d) paralysis of skeletal muscles