Cumulative Exam — Cumulative exam Answers

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21
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The chaparral biome has adapted to suppress wildfires.

A
T
B
F
22
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Which of the following is the best environment in which to observe impacts of the founder effect?

A
the North American great plains
B
the Amazon rainforest
C
small Pacific islands
D
deserts
23

Yellowstone National Park has 124 wolves living in it. The park covers 3472 square miles. What is the population density of wolves living in Yellowstone?

Question illustration
A
28 wolves/mi
B
0.0357 wolves/mi
C
82 wolves/mi
D
43 wolves/mi
24

Organisms that live in the alpine and taiga biomes have developed unique adaptations that aid in their survival. The snowshoe rabbit is one of the animals found in the taiga biome. It is unique in that it is able to hide from predators in the snow in the winter, as well as in the forested areas in the summer without being seen. Photo by USDA Photo by David Adamec Which of the snowshoe rabbit’s unique adaptations help it to survive predation in the taiga?

Question illustration
A
hibernation
B
migration
C
seasonal color changes
D
insulating fur and feathers
25

Which of the following scenarios is representative of parasitism?

A
Tapeworms living in a mammal’s intestinal tract
B
Remora fish attaching themselves to sharks
C
Birds feeding on insects stirred up by grazing animals
D
Birds eating scraps of food from a crocodile’s teeth

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