Which of the following behaviors is not associated with a high risk of HIV transmission?
a. unprotected sex (no condom used)
b. exposure to contaminated blood products
c. intravenous drug use
d. sharing bathroom facilities
e. a baby born to an HIV infected mother
D
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Large proteins such as albumin remain in capillaries rather than diffusing out, resulting in the _____
A) loss of osmotic pressure in the capillaries B) development of an osmotic pressure difference across capillary walls C) loss of fluid from capillaries D) increased diffusion of carbon dioxide E) increased diffusion of hemoglobin
Which of the following statements describes how root meristems differ from apical meristems in plants?
A. Cells in root meristems have determinate growth. B. Root meristems are shielded by a root cap that protects cells from abrasion by the soil. C. Cells in root meristems are adjacent to the zone of maturation. D. Cells in root meristems are stimulated by hormones other than auxin.
When the body experiences stress, the sympathetic division of the autonomic nervous system
stimulates the adrenal medulla to release
a. epinephrine. b. norepinephrine. c. knockout hormones. d. epinephrine and norepinephrine. e. epinephrine, norepinephrine, and knockout hormones.
A cohort is ____.
A. a group of individuals of the same species born during the same time interval B. any member of the same species C. a group of individuals with the same parents D. a group of individuals of the same sex E. any group of closely related individuals