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Ecosystem Interaction Scenarios
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Ecosystem Interaction Scenarios
📚 Part 1: Scenario Cards — Choose the interaction
1. A sea eagle catches and eats a fish from a coastal estuary. The eagle benefits and the fish dies.
Predation
Competition
Mutualism
Commensalism
Parasitism
2. Two species of seabirds nest on the same cliff ledges and compete for the best nesting spots.
Predation
Competition
Mutualism
Commensalism
Parasitism
3. Cleaner fish remove parasites from larger reef fish; both species gain from this interaction.
Predation
Competition
Mutualism
Commensalism
Parasitism
4. Barnacles attach to a whale's skin and travel with it, gaining transport while the whale is largely unaffected.
Predation
Competition
Mutualism
Commensalism
Parasitism
5. A parasitic worm lives inside a native frog, feeding on its blood and reducing the frog's health.
Predation
Competition
Mutualism
Commensalism
Parasitism
✏️ Part 2: Short Explanations
6. Pick the scenario you labelled Mutualism. Name the two species and explain, in 2–3 sentences, how each benefits.
7. For the scenario you labelled Predation, describe one short-term effect and one possible long-term effect on the prey population.
8. Choose either the Competition or Parasitism scenario. Suggest one human action that could reduce negative impacts and explain why it would help.
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