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Selection Quizzes (English)





1.According to Lovgren, what is the relationship between alligators and invading snakes in the Everglades?
The snakes are afraid of the alligators and stay away from them at all costs.
The snakes eat most of the alligator's young each spring.
The alligators have so far managed to hold their ground against the invading snakes.
The alligators eat almost every snake that enters their territory.



2.Which of the following best describes the ecological effects of invasive species?
Invasive species cause more extinction than even habitat loss.
Invasive species are the second leading cause of extinction and species endangerment in the United States.
Invasive species are without a doubt the number one U.S. environmental threat.
Introduced pythons are wreaking havoc in the Everglades.



3.What is a "stowaway organism"?
an organism that arrives in packing materials or ships' water tanks
an exotic pet or food
a type of invasive species known as a "micro-critter"
a Burmese python



4.How do biologists think most of the Burmese pythons end up in the Everglades?
They escape from zoos.
They are shipped to the Everglades by the Burmese government.
They are released into the wild by pet owners.
They are released into Everglades by alligator hunters.

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