Ecosystem Dynamics and Sustainability · Ecology

Energy Flow and Nutrient Cycling

Investigating how energy is lost at each trophic level and how matter is recycled through biogeochemical cycles.

Key Questions

  1. 1Why are food chains typically limited to four or five trophic levels?
  2. 2How does the disruption of the nitrogen cycle impact water quality and biodiversity?
  3. 3What is the role of decomposers in maintaining the productivity of an ecosystem?

ACARA Content Descriptions

AC9S11U11
Year: Year 11
Subject: Biology
Unit: Ecosystem Dynamics and Sustainability
Period: Ecology

Suggested Methodologies

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