Depolarization is initiated when there is an influx of sodium inside the cell as opposed to repolarization, where potassium exits the cell (occurring after Na+ gates close). Remember that for every 3 Na+ in, there is 2 K+ out. This imbalance helps to stabilize the membrane.
Answer:
D
Explanation:
The trout are disappearing from the river because of the thermal water pollution, which is causing the high water temperatures.
The public is upset with the farms’ unnatural farming practices.
