Let's solve each question based on the food web diagram provided.
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1. State the main difference between a food chain and a food web.
Answer:
A
food chain shows a single, linear pathway of energy transfer from one organism to another (e.g., Grass → Grasshopper → Bird → Fox). In contrast, a
food web shows multiple interconnected food chains, illustrating the complex feeding relationships among various organisms in an ecosystem. The food web provides a more realistic view of how energy flows through an ecosystem because most organisms eat more than one type of food and are eaten by multiple predators.
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2. In the food chain: Grasses → Grasshoppers → Birds → Foxes
a)
Name the producer:
→
Grasses
*(Producers are organisms that make their own food through photosynthesis.)*
b)
Name the primary consumer:
→
Grasshoppers
*(Primary consumers eat producers. Grasshoppers feed on grasses.)*
c)
Name the secondary consumer:
→
Birds
*(Secondary consumers eat primary consumers. Birds eat grasshoppers.)*
d)
Name the tertiary consumer:
→
Foxes
*(Tertiary consumers eat secondary consumers. Foxes eat birds.)*
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3. Name an apex predator in the food chain.
Answer:
→
Foxes or
Owls
*(Apex predators are at the top of the food web and have no natural predators. Both foxes and owls are shown as top-level consumers with no arrows pointing to them from other animals.)*
> Note: Both
foxes and
owls can be considered apex predators in this food web.
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4. Name three herbivores in the food web.
Answer:
→
Rabbits,
Mice,
Grasshoppers
*(Herbivores are animals that eat plants. Rabbits eat carrots and grasses; mice eat grasses and grains; grasshoppers eat grasses.)*
> Other possible answers:
Birds (if they eat grains), but since birds also eat insects (grasshoppers), they are omnivores. So stick with clear herbivores: rabbits, mice, grasshoppers.
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5. Name three carnivores in the food web.
Answer:
→
Foxes,
Owls,
Birds
*(Carnivores eat meat. Foxes eat rabbits and mice; owls eat mice and birds; birds eat grasshoppers.)*
> Note: While birds may eat seeds (herbivory), they are also shown eating grasshoppers, so they are classified as carnivores (or omnivores) here.
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✔ Final Answers Summary:
1. A food chain shows a single path of energy flow, while a food web shows multiple interconnected food chains.
2. a) Producer:
Grasses
b) Primary consumer:
Grasshoppers
c) Secondary consumer:
Birds
d) Tertiary consumer:
Foxes
3. Apex predator:
Foxes or
Owls
4. Herbivores:
Rabbits, Mice, Grasshoppers
5. Carnivores:
Foxes, Owls, Birds
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Parent Tip: Review the logic above to help your child master the concept of food chain and food web worksheet answers.
