Which biome current has the highest number of extinctions?
A. tropical rainforests
B. desert
C. taiga
D. freshwater ecosystems
E. tundra
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Illegal hunting for profit is called
A. subsistence hunting
B. sport hunting
C. partial hunting
D. commercial hunting
E. poaching
In general, which of the following is the best long term method of preventing extinctions?
A. breeding the species in captivity
B. protecting the entire habitat
C. paying people not to hunt them
D. providing food to wild populations
E. removing predators from the habitat
An example of a keystone species would be a
A. condor
B. spotted owl
C. sea urchin
D. sea otter
E. maple tree
All of the following are considered "Christmas" tree forests except
A. evergreen forests
B. temperate deciduous forests
C. boreal forests
D. taiga
E. coniferous forests
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