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Mini DBQ: Ecosystem Energy Flow
Background: Ecosystems maintain themselves by cycling energy and nutrients obtained from
external sources.
Task: Using the document provided, describe the process in which energy flows through an ecosystem.

Your response must address the following:
What factors make up an ecosystem?
What are the trophic levels in an ecosystem in order from largest to smallest?
How does energy flow through trophic levels? How much energy is lost with each transition?
How is the flow of matter and energy in an ecosystem important in terms of the interdependence of organisms on one another and their environment?

Pre-Write Brainstorming: Use Document A to fill out the boxes below:
Observations: What do you see?
Inferences: What do you think is happening?
Question: How is energy flowing through this food chain?
Question: What would happen to the mouse population if the mountain lion population decreased?

Response: