Under Stress,a Community Loses a Number of Species

question 32

Multiple Choice

Under stress,a community loses a number of species.When the stress is removed,the species composition recovers and then stabilizes.During this process,what will be the most likely effect on net primary productivity?

• A) It will increase.
• B) It will decrease.
• C) It will be unaffected.
• D) It will increase and then stabilize.
• E) It will decrease,recover,and then stabilize.

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