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Praxis II Middle School Content Knowledge Test Prep

Category - Praxis Middle School Content Knowledge Practice Test

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As the dominant plant of the area changes, the total biomass of the community __________.
  1. Increases
  2. Decreases
  3. Remains the same
  4. Decreases then increases
  5. Increases then decreases
Explanation
Answer: A, increases. As a community moves through a succession, each change brings forth an increase in total biomass.

Key Takeaway: As a community moves through a succession, it is characterized by an increase in total biomass, a greater capacity to retain nutrients in the system, increasing species diversity, and increasing size and lifespan of organisms.
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