What was the method recommended to avoid gaps in the array when an element is removed?
a. Shift all the entries beyond the new gap back one slot
b. Shift all the entries in front of the new gap up one slot
c. Set the pointer in the entry before the gap to the entry after the gap
d. Replace the entry being removed with the last entry in the array

Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.