Sustainable Ecosystems and Stewardship · Life Science
Nutrient Cycles and Energy Flow
Investigating how carbon, nitrogen, and phosphorus move through biotic and abiotic components of an ecosystem.
Key Questions
- 1How does a single atom of carbon travel from the atmosphere into a living organism and back?
- 2What would happen if the balance of nitrogen-fixing bacteria in the soil was disrupted?
- 3Why is only ten percent of energy passed between trophic levels in a food web?
Ontario Curriculum Expectations
ON: Biology: Sustainable Ecosystems and Climate Change - Grade 9
Grade: Grade 9
Subject: Science
Unit: Sustainable Ecosystems and Stewardship
Period: Life Science
Suggested Methodologies
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