Rods, a type of photoreceptor cell, respond to light (stimulus) by
A. hypopolarizing.
B. hyperpolarizing.
C. depolarizing.
D. repolarizing.
E. opening Na+ channels in the plasma membrane.
Answer: B
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MyPlate depicts fruits and vegetables occupying _______ of the plate
A. one-tenth B. one-fourth C. one-half D. nine-tenths
Which generalization concerning movement by skeletal muscles is not true?
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Small, wandering cells that engulf cell debris and pathogens in the CNS are called
A) astrocytes. B) satellite cells. C) oligodendrocytes. D) microglia. E) ependymal cells.