The nuclear envelope consists primarily of
A. ribosomal subunits.
B. messenger RNA.
C. two phospholipid bilayers.
D. a double helix of DNA.
Answer: C
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Wendy had a few alcoholic drinks, then found walking and maintaining her balance difficult. Which part of her brain was sedated by the alcohol?
A) cerebrum B) hypothalamus C) cerebellum D) thalamus E) pons
Exposure to the bacterium Clostridium tetani causes continuous release of acetylcholine. What effect does this have on smooth muscle?
A. Myocardial atrophy B. Lockjaw C. Flaccid paralysis D. Spastic paralysis E. No effect
A(n) ____________________ is a sore, or lesion, that forms in the mucosal lining of the stomach or duodenum.?
Fill in the blank(s) with correct word
A flash of light causes the eyes to send signals to the brain. A loud noise causes the ears to send signals to the brain. The brain receives these signals and "decides" to send signals to the legs to make the person run from this event. The decision to send signals to the legs is part of which nervous system function?
A. Integration B. Sensory input C. Motor output