Here’s the complete solution to the food web worksheet, with clear explanations:
---
1. State the main difference between a food chain and a food web.
✔ Answer:
A
food chain is a *single, linear pathway* showing how energy flows from one organism to another (e.g., Grass → Rabbit → Fox).
A
food web is a *complex network of interconnected food chains*, showing how multiple organisms in an ecosystem are linked through various feeding relationships.
📌 *Explanation:* In nature, animals usually eat more than one type of food and are eaten by more than one predator — so a food web gives a more realistic and complete picture of energy flow in an ecosystem than a simple food chain.
---
2. In the food chain: Grasses → Grasshoppers → Birds → Foxes
a) Name the producer:
✔ Grasses
b) Name the primary consumer:
✔ Grasshoppers
c) Name the secondary consumer:
✔ Birds
d) Name the tertiary consumer:
✔ Foxes
📌 *Explanation:*
-
Producers make their own food (usually plants via photosynthesis).
-
Primary consumers eat producers (herbivores).
-
Secondary consumers eat primary consumers (carnivores or omnivores).
-
Tertiary consumers eat secondary consumers (top carnivores).
---
3. Name an apex predator in the food chain.
✔ Foxes (or
Owls — both are correct)
📌 *Explanation:* An
apex predator is at the top of the food chain and has no natural predators in this ecosystem. In this diagram, both
foxes and
owls eat other animals but are not eaten by anything else shown — so either can be named as an apex predator.
---
4. Name three herbivores in the food web.
✔ Rabbits,
Mice,
Grasshoppers
📌 *Explanation:* Herbivores eat only plants (producers).
- Rabbits eat carrots and grasses.
- Mice eat grasses and grains.
- Grasshoppers eat grasses and grains.
*(Note: Birds eat grasshoppers, so they are not herbivores; they’re secondary consumers.)*
---
5. Name three carnivores in the food web.
✔ Foxes,
Owls,
Birds
📌 *Explanation:* Carnivores eat other animals.
-
Foxes eat rabbits, mice, and birds.
-
Owls eat mice and grasshoppers (insects are animals too!).
-
Birds eat grasshoppers.
*(Note: While birds might sometimes eat seeds, in this food web they are shown eating grasshoppers — so they function as carnivores here.)*
---
✔ Final Tip: Always look at the arrows in a food web — they point from the organism being eaten *to* the organism that eats it. This shows the direction of energy flow.
Let me know if you’d like a visual breakdown or quiz to test your understanding! 🐰🌾🦉
Parent Tip: Review the logic above to help your child master the concept of food chains and food webs worksheet.