An ecosystem that is stable is likely to have a
A) high percentage of "eury" species for the environmental conditions present.
B) high percentage of "steno" species for the environmental conditions present.
C) narrow optimal range for the environmental conditions present.
D) high percentage of r-selected species.
A) high percentage of "eury" species for the environmental conditions present.
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What were the two groups of marine reptiles?
A)plesiosaurs and pterosaurs B)pterosaurs and ichthyosaurs C)captorhinomorphs and plesiosaurs D)plesiosaurs and ichthyosaurs E)plesiosaurs and crocodiles
As of 2014, which of the following statements about China is true?
A) China's population has doubled since 2000. B) China's fertility rate has declined from 4.5 to 1.6. C) China's population has 400 million more people than it would have had without the one-child policy. D) China's solution to population growth has been endorsed strongly by the 2008 Stockholm Conference.
The ancient Indian fable of blind people encountering an elephant for the first time is used to demonstrate the realist-constructionist debate about environmental problems. Summarize this debate and provide an example of how the realist and constructionist perspective are complementary, not contradictory.
What will be an ideal response?
One result of wave refraction is that wave energy is concentrated ________
A) in the recessed areas between headlands B) in estuaries C) on headlands projecting into the water D) none of the above