Prairie dogs eat mostly grasses, but will eat insects and prickly pear cacti when grasses are not available. They are also hunted by many predators: hawks, owls, coyotes, foxes, and snakes are just a few. How has the human population influenced this food chain?
A It has increased the prairie dog population by killing off the predators.It has increased the prairie dog population by killing off the predators.
B It has reduced the prairie dog population because they are pests to humans.It has reduced the prairie dog population because they are pests to humans.
C It has reduced all three levels by reducing the amount of prairie land available.It has reduced all three levels by reducing the amount of prairie land available.
D It has increased the amount of prairie land and also the amount of prairie dogs.
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C It has reduced all three levels by reducing the amount of prairie land available.
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