Arrange the following into a logical food chain from producer to top predator: (a) Frog (b) Eagle (c) Grasshopper (d) Snake (e) Grass.

Introduction / Context:
Food chains start with producers (plants), then primary consumers (herbivores), followed by secondary and higher-level consumers (carnivores). Recognizing trophic levels is essential.

Given Data / Assumptions:

• Producer: Grass (e)
• Primary consumer: Grasshopper (c)
• Secondary consumer: Frog (a) — insectivore
• Tertiary consumer: Snake (d) — predator of frogs
• Apex predator here: Eagle (b) — can prey on snakes

Concept / Approach:
Follow the direction of energy flow: plant → herbivore → small carnivore → larger carnivore → apex predator.

Step-by-Step Solution:
1) Grass (e) — photosynthetic producer.2) Grasshopper (c) — herbivore feeding on grass.3) Frog (a) — eats insects such as grasshoppers.4) Snake (d) — feeds on frogs.5) Eagle (b) — can prey on snakes; top of this chain.

Verification / Alternative check:
The chain e → c → a → d → b respects increasing trophic levels and common ecological interactions.

Why Other Options Are Wrong:
They misplace producers or reverse predator–prey relations (e.g., placing frog before grass).

Common Pitfalls:
Confusing “who eats whom” between similar carnivores; remember frogs consume insects, and snakes can consume frogs.

Final Answer:
e, c, a, d, b