Choose the sequence which represents the correct order of organisms in a food chain

Analyze the question: A food chain shows who eats whom, starting with a producer and moving up through consumers. Each organism is eaten by the next one in the chain.

Concept:

• Producer: green plants (grass) make their own food.
• Primary consumer: herbivore (eats plants).
• Secondary consumer: eats the herbivore.
• Tertiary consumer: eats the secondary consumer.
• Top consumer: eats the tertiary consumer and usually has no natural predator.

Solution:

1. Grass is the producer, so it comes first.
2. Grasshopper eats grass, so it is the primary consumer and comes second.
3. Toad eats insects like grasshoppers, so it is the secondary consumer and comes third.
4. Snake eats toads, so it is the tertiary consumer and comes fourth.
5. Hawk eats snakes, so it is the top predator and comes last.

Chain: Grass → Grasshopper → Toad → Snake → Hawk

Checking the other options:

• A: A snake cannot eat grass, so it cannot follow grass directly.
• C: A toad does not feed on snakes, since snakes eat toads, so the order is reversed.
• D: A snake cannot follow grass, and a toad does not eat a snake.

Answer: B

Tip: Always start with the producer, then ask "who eats this?" at each step. The first consumer must be a herbivore. If an option puts a carnivore right after the plant, eliminate it immediately.