I believe your answer is B :)
1. The plant should not have leaves. To prevent transpiration from taking place
2. Plant should be well watered. Plants need water
3. Put some Vaseline to seal open gaps. This prevents water evaporation
Unfortunately I don't have the 4th one :/
Answer:
two domains is the answer
Since owls live on the eastern side and not the western side, overtime the population of mice on the eastern area would diminish in numbers while the mice on the western side will increase and thrive in numbers ( since no owls are hunting them ).
