Question

bottleneck effect
a bottleneck effect occurs when a random event (like a tornado, drought, or other natural disaster) wipes out a large chunk of the population. the population gets smaller, just like the neck of a bottle gets smaller.

1. how many different organisms are there before the tornado?
2. how many different organisms are there after the tornado?
3. how do natural disasters affect biodiversity?

Explanation:

1. By counting the distinct - shaped organisms in the 'Before' image, we can determine the initial number. There are 10 different - shaped organisms before the tornado.
2. Counting the distinct - shaped organisms in the 'After' image, we find there are 5 different - shaped organisms after the tornado.
3. Natural disasters like tornadoes reduce biodiversity by killing off many organisms. This reduces the number of different species and genetic variation in the population.

Answer:

1. 10
2. 5
3. Natural disasters reduce biodiversity by killing off many organisms, decreasing the number of different species and genetic variation in the population.