You are presented with the question "What is it called when the number of people suddenly gets smaller?" and the following answer choices: 
- competing for resources
 - competition
 - A Greek letter
 - heat or cold
 - Earth orbiting the Sun
 - permineralization
 - bottleneck effect
 - relocation

Now knowing that bottleneck effect occurs when a population suddenly gets much smaller and population is the number of people, choose the best answer.


 

       bottleneck effect  