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Type: Multiple-Choice
Category: Communities, Populations, and Ecosystems
Level: Grade 9
Score: 1
Author: spont_24
Last Modified: 5 months ago

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Communities, Populations, and Ecosystems Question

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Grade 9 Communities, Populations, and Ecosystems

Which of these statements describes a niche?
  1. an environmental factor that tends to limit population size
  2. an increase in the Earth's average atmospheric temperature that causes corresponding changes in climate, which may result from the greenhouse effect
  3. the unique living arrangement of an organism defined by its habitat, food sources, time of day it is most active, and other factors
  4. none of the above
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