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<h1>🌍 Ecosystems and Food Webs Review</h1>
<h2>Week 31 — Friday | Review and Check Your Knowledge</h2>
<h3>✅ Review: Key Concepts</h3>
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<p>Every animal needs a <strong>habitat</strong> that provides food, water, shelter, and space. An <strong>ecosystem</strong> is the community of living and non-living things interacting together. Energy flows through ecosystems via <strong>food chains</strong> and interconnected <strong>food webs</strong>. Producers (plants) capture solar energy, consumers (animals) pass energy along, and decomposers recycle nutrients. Biodiversity makes ecosystems more stable and resilient to change!</p>
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<h3>📝 Review Questions</h3>
<p><strong>1. What four things does every animal need from its habitat? Explain why each one is essential.</strong></p>
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<p><strong>2. Compare a rainforest ecosystem with a grassland ecosystem. How do they differ in climate, structure, and animal life?</strong></p>
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<p><strong>3. Explain how energy flows through an ecosystem. Start with the sun and end with decomposers.</strong></p>
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<h3>✅ True or False</h3>
<p><span class="circle-box"></span> <strong>1.</strong> An ecosystem includes both living and non-living things.</p>
<p><span class="circle-box"></span> <strong>2.</strong> All food chains begin with a producer.</p>
<p><span class="circle-box"></span> <strong>3.</strong> The sun is the ultimate source of energy for most ecosystems.</p>
<p><span class="circle-box"></span> <strong>4.</strong> Herbivores are secondary consumers.</p>
<p><span class="circle-box"></span> <strong>5.</strong> A food web shows many connected food chains.</p>
<p><span class="circle-box"></span> <strong>6.</strong> Decomposers are not important because they only break down dead things.</p>
<p><span class="circle-box"></span> <strong>7.</strong> If a species disappears, it can affect the entire food web.</p>
<p><span class="circle-box"></span> <strong>8.</strong> About 90% of energy is lost at each trophic level.</p>
<p><span class="circle-box"></span> <strong>9.</strong> Coral reefs are found on land in tropical climates.</p>
<p><span class="circle-box"></span> <strong>10.</strong> More biodiversity generally means a more stable ecosystem.</p>
<h3>✏️ Fill in the Blanks</h3>
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<p><strong>Word Bank:</strong>
<span>ecosystem</span><span>habitat</span><span>photosynthesis</span><span>food chain</span><span>food web</span><span>producer</span><span>consumer</span><span>decomposer</span><span>biodiversity</span><span>canopy</span><span>intertidal</span><span>savanna</span>
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<p>1. A community of living and non-living things interacting together is an ________________.</p>
<p>2. The place where an animal lives that provides food, water, shelter, and space is its ________________.</p>
<p>3. The process plants use to make food from sunlight is ________________.</p>
<p>4. A single path of energy from one organism to another is a ________________.</p>
<p>5. Many interconnected food chains form a ________________.</p>
<p>6. Organisms that make their own food are ________________.</p>
<p>7. Organisms that eat other organisms are ________________.</p>
<p>8. Organisms that break down dead matter are ________________.</p>
<p>9. The variety of life in an ecosystem is called ________________.</p>
<p>10. The top layer of a rainforest where most animals live is the ________________.</p>
<p>11. The area between high and low tide is the ________________ zone.</p>
<p>12. A tropical grassland with scattered trees is called a ________________.</p>
<h3>🔍 Label the Food Chain</h3>
<p><strong>For each organism, write its role: Producer (P), Primary Consumer (PC), Secondary Consumer (SC), Tertiary Consumer (TC), or Decomposer (D).</strong></p>
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<tr><th style="width: 220px;">Organism</th><th>Role</th><th>Trophic Level</th></tr>
<tr><td>Oak tree</td><td style="height: 22px;"></td><td></td></tr>
<tr><td>Deer</td><td></td><td></td></tr>
<tr><td>Fox</td><td></td><td></td></tr>
<tr><td>Eagle</td><td></td><td></td></tr>
<tr><td>Mushroom (fungi)</td><td></td><td></td></tr>
<tr><td>Grasshopper</td><td></td><td></td></tr>
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<h3>🎨 Design an Ecosystem</h3>
<p><strong>Draw a complete ecosystem. Include at least: 3 producers, 3 primary consumers, 2 secondary consumers, 1 top predator, and decomposers. Draw arrows showing energy flow.</strong></p>
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<p><strong>Ecosystem name:</strong> ________________ <strong>Type:</strong> ________________</p>
<h3>✅ Weekly Progress Checklist</h3>
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<div class="checklist-item"><span></span> Read about rainforest, grassland, and ocean ecosystems</div>
<div class="checklist-item"><span></span> Identified the four things animals need from a habitat</div>
<div class="checklist-item"><span></span> Completed habitat comparison chart</div>
<div class="checklist-item"><span></span> Matched animals to their correct habitats</div>
<div class="checklist-item"><span></span> Drew a rainforest cross-section with labeled layers</div>
<div class="checklist-item"><span></span> Read about food chains, food webs, and energy flow</div>
<div class="checklist-item"><span></span> Learned about trophic levels (producers, consumers, decomposers)</div>
<div class="checklist-item"><span></span> Completed vocabulary grid</div>
<div class="checklist-item"><span></span> Built a food chain and drew a food web</div>
<div class="checklist-item"><span></span> Analyzed "what happens when a link breaks" scenarios</div>
<div class="checklist-item"><span></span> Completed true/false and fill-in-the-blank review</div>
<div class="checklist-item"><span></span> Designed a complete ecosystem diagram</div>
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<h3>💭 Reflection</h3>
<p><strong>Why is understanding ecosystems important? How does knowing about food webs help us protect the environment?</strong></p>
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<p><strong>Which ecosystem would you most like to visit? Why?</strong></p>
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<h3>🔮 Looking Ahead</h3>
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<p><strong>Next Week: Conservation and Endangered Species</strong></p>
<p>Our final week! We'll explore why some animals are endangered, what humans can do to help, and how we can protect the incredible biodiversity we've learned about this year.</p>
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<p style="margin-top: 8px;"><strong>⭐ Amazing work! You've mastered how animals and their habitats work together in ecosystems!</strong></p>
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