Smoking during pregnancy harms the fetus by
A) increasing the risk for Down syndrome.
B) restricting blood supply, oxygen, and nutrients to the fetus.
C) increasing the risk of fetal toxoplasmosis.
D) magnifying the effects of over-the-counter medications.
B
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Chemicals such as DDT and DES interfere with reproduction by
A. disrupting endocrine activity. B. destroying reproductive organ tissues. C. causing mutations in sperm and ova. D. making sex fluids highly acidic.
Differences in life expectancy between males and females are due to all of the following, EXCEPT rates of
A. injury. B. exercise. C. alcohol use. D. tobacco use.
Active health care consumers protect themselves against mismanaged care by:
a. appealing refusal of insurance coverage. b. discussing insurance coverage for hospital stays. c. learning what to do in case of emergencies. d. all of these choices
Which structures within the spine act as shock absorbers and permit spinal column movement?
A. synovial joints B. vertebrae C. ligaments D. intervertebral disks