8. Which type of forest naturally develops after the trees in an area have been
ID: 218080 • Letter: 8
Question
8. Which type of forest naturally develops after the trees in an area have been removed by human activities, such as clear-cutting for timber or conversion to cropland, or by natural forces such as fires and hurricanes??
a.
?recovery forest
b.
?tree plantation
c.
?primary forest
d.
?old-growth forest
e.
?second-growth forest
9. Removing all the trees from an area is called a ____.?
a.
?second-cut
b.
?strip-cut
c.
?clear-cut
d.
?selective-cut
e.
?purge-cut
10. Stinkbugs can release a foul smell when threatened. This is an example of ____.?
a.
?mimicry
b.
?chemical warfare
c.
?echolocation
d.
?warning coloration
e.
?camouflage
Indicate whether the statement is true or false.
11. Bacteria in the digestive systems of animals that help to break down the animals’ food, and in return receive a sheltered habitat and food, are examples of mutualism.
a.
True
b.
False
Indicate the answer choice that best completes the statement or answers the question.
12. Which common problem of U.S. cities is now an issue in United States national parks??
a.
?air pollution
b.
?homeless people
c.
?lack of funding for schools
d.
?alcoholism
e.
?high crime rates
Indicate whether the statement is true or false.
13. American alligators dig holes that many other species rely on.?
a.
True
b.
False
8. Which type of forest naturally develops after the trees in an area have been removed by human activities, such as clear-cutting for timber or conversion to cropland, or by natural forces such as fires and hurricanes??
a.
?recovery forest
b.
?tree plantation
c.
?primary forest
d.
?old-growth forest
e.
?second-growth forest
Explanation / Answer
8. E. Second growth forest
9. C. Clear cut
10. B
11. A. True
12. B.Homeless people
13. A. True
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