Direction 1: Answer the following questions.
a. Identify the autotroph and heterotroph in the food chain (Sun → Grass → Zebra).
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Autotroph: Grass (It makes its own food using sunlight)
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Heterotroph: Zebra (It eats the grass to get energy)
b. Is giraffe a primary or a secondary consumer?
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Primary Consumer (Giraffes eat plants/leaves, which makes them herbivores and primary consumers).
Direction 2: Label each organism in the given energy pyramid as autotroph or heterotroph and their role in the trophic level.
| Name of the Organisms | Autotroph/Heterotroph | Role in the Trophic Level |
| :--- | :--- | :--- |
| Cactus | Autotroph | Producer |
| Grasshopper | Heterotroph | Primary Consumer |
| Snake | Heterotroph | Secondary Consumer |
| Frog | Heterotroph | Secondary Consumer |
| Tree | Autotroph | Producer |
| Hawk | Heterotroph | Tertiary Consumer |
| Butterfly | Heterotroph | Primary Consumer |
Final Answer:
Direction 1
a. (i) Autotroph:
Grass | (ii) Heterotroph:
Zebra
b.
Primary Consumer
Direction 2
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Cactus: Autotroph, Producer
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Grasshopper: Heterotroph, Primary Consumer
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Snake: Heterotroph, Secondary Consumer
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Frog: Heterotroph, Secondary Consumer
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Tree: Autotroph, Producer
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Hawk: Heterotroph, Tertiary Consumer
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Butterfly: Heterotroph, Primary Consumer
Parent Tip: Review the logic above to help your child master the concept of food web and food chain worksheet.
