Ecosystems and Food Webs
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How energy flows through living systems and what keeps ecosystems in balance.
13 content steps
5 quizzes
~270 minutes
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Journey Steps
Preview
1
Content Step 1
Content
What is an ecosystem? Components and boundaries
2
Content Step 2
Content
Energy flow: producers, consumers, decomposers
3
Content Step 3
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Food chains vs food webs
4
Quiz 4
Quiz
Checkpoint Quiz
5
Content Step 5
Content
Trophic levels and ecological pyramids
6
Content Step 6
Content
Keystone species and trophic cascades
7
Content Step 7
Content
Niche, habitat, and competition
8
Quiz 8
Quiz
Checkpoint Quiz
9
Content Step 9
Content
Symbiosis: mutualism, commensalism, parasitism
10
Content Step 10
Content
Ecological succession: primary vs secondary
11
Content Step 11
Content
Disturbance, resilience, and stability
12
Quiz 12
Quiz
Checkpoint Quiz
13
Content Step 13
Content
Ecosystem services: provisioning to cultural
14
Content Step 14
Content
Major biomes overview (forest, grassland, desert, tundra)
15
Content Step 15
Content
Human impacts and ecological restoration
16
Quiz 16
Quiz
Checkpoint Quiz
17
Content Step 17
Content
Basic field methods: quadrats, transects, mark–recapture
18
Quiz 18
Quiz
Checkpoint Quiz
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