Because prairie dogs have a major effect on the ecological functioning of their habitat and the health of other members of their community, they are considered to be
A. an indicator species.
B. a flagship species.
C. a keystone species.
D. an umbrella species.
Answer: C
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When Freddy Frog drops vertically from a tree onto a horizontally-moving skateboard, the speed of the skateboard
A. increases. B. decreases. C. doesn't change. D. none of the above
Albanians make up the majority of the population in:
A. Serbia. B. Montenegro. C. Kosovo. D. Bosnia.
The three superfamilies of the ____________________ are Cercopithecoidea (or Old World monkeys), Ceboidea (or
New World monkeys), Hominoidea (or hominoids). Fill in the blank(s) with the appropriate word(s).
Which of the following best matches the description?Process of replanting an area after the original trees are removed.
A. clear-cutting B. cover C. selective harvesting D. reforestation E. threatened species F. speciation G. patchwork clear-cutting H. mutation I. biodiversity J. species diversity K. endangered species L. extinction M. habitat management