Final Answer:
1. A food chain starts with a producer and ends with a top predator. Green plants are called producers because they use the light energy of the sun to produce food using carbon dioxide and water through a process called photosynthesis. Animals cannot make their food and thus are called consumers.
2. There are 4 main trophic levels in a food chain. They are producers, primary consumers, secondary consumers, and tertiary consumers. Apart from the said trophic levels, apex predators have no natural predators except humans. Then, decomposers, like fungi and bacteria, turn dead organisms into inorganic materials in the soil.
① Two longest food chains in the food web:
- Grass → Grasshopper → Shrew → Snake → Hawk
- Tree → Deer → Mountain Lion
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Parent Tip: Review the logic above to help your child master the concept of food chain food web worksheet.