Well it really depends on what kind of change there is. For this I'll use a drought as an example. If a drought occurs in an area the plant life and vegetation will start to die off in that area. From there, primary consumers would run out of food. then secondary consumers, and so forth and so on. it'd be like putting a cow in a field of dirt with no food and a large bucket of water. Eventually the cow will die of starvation. Now apply this to all of the animals in that ecosystem.
I think you just typed the answer in the 2nd paragraph:)
If I did my math correct, the answer would be 2 seconds.
Answer: shrink
A red blood cell placed in a medium that is hypertonic relative to its cytoplasm will shrink
Explanation:
Since the hypertonic medium has a higher concentration than the red blood cell, water will move out of the cell membrane of the red blood cell into the hypertonic medium.
Thus, after a while the continuous loss of water will cause the red blood cell to shrink (reduce in size)