The critical function of the sodium-potassium pump of neurons is to move
A. Na+ and K+ into the cell.
B. Na+ and K+ out of the cell.
C. Na+ into the cell and K+ out of the cell.
D. Na+ out of the cell and K+ into the cell.
E. Na+ and K+ into the cell and H+ out of the cell through an antiport mechanism.
D. Na+ out of the cell and K+ into the cell.
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If you worked at a factory that required shift work at night and you slept during the day, which hormone's production would be altered?
a. thyroid hormone b. melatonin c. calcitonin d. cortisol e. insulin
The silverfish
a. have incomplete development. b. undergo direct development. c. parasitize other insects. d. produce large quantities of ammonia waste. e. fit none of these descriptions.
If these resistant individuals continue to survive and prosper, new resistant populations might emerge. This would be an example of ________.
A. sexual selection B. natural selection C. the founder effect D. genetic drift
Cell surface markers composed of both carbohydrate and lipid molecules are known as (glycoproteins/glycolipids/LPS)
What will be an ideal response?