For Questions 8-10, complete each statement by writing the correct word or words.
8.
After a natural disaster occurs in a healthy ecosystem, secondary succession will cause
the ecosystem to return to its original
9. The clearing of a rain forest is the example of a(n)
enough to prevent the original climax community from reforming.
10. During primary succession,
species arrives in an area first.
plays a large role in determining which pioneer
drastic
11. What are the two kinds of disturbances that change ecosystems? Give an example of
each.