A conceptus is most vulnerable to teratogen exposure during what time frame?
A. Within 48 hours of fertilization
B. 24 hours before ovulation
C. 16 to 20 weeks after fertilization
D. 20 to 30 weeks after fertilization
E. 3 to 8 weeks after fertilization
Answer: E
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A nurse found the pre-operative patient out of bed, barefoot, and watching TV while eating breakfast. "We have to cancel your surgery, because you're not NPO," the nurse said. What did the patient do wrong?
A) The patient watched TV. B) The patient walked barefoot. C) The patient ate food. D) The patient left his or her hospital bed.
C) blood flow through an organ.
C) blood flow through an organ.
A vaccine is effective because ________
A) the vaccine contains the antibodies necessary to fight infection B) the vaccine contains the lymphocytes necessary to fight infection C) the secondary response of the adaptive immunity is faster and more efficient the primary response D) B-lymphocytes are unable to mount an immune response the first time they are exposed to a new pathogen
The events that occur in the postabsorptive state collectively ________.
A. maintain blood glucose levels B. maintain protein levels C. interconvert proteins to lipids D. decrease lipid metabolism E. assure adequate lipogenesis