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Q38 (CDS-II/2026) Environment & Ecology › Ecology & Ecosystem Basics

Which one among the following constitute a food chain ?

Result
Your answer: —  ·  Correct: B

Explanation

A food chain is a linear sequence of organisms where nutrients and energy are transferred from one organism to another as they consume each other. It typically starts with a producer (autotroph), followed by consumers.

  • Option B: Grass (Producer) → Insects (Primary Consumer/Herbivore) → Frog (Secondary Consumer/Carnivore). This represents a valid ecological flow of energy.
  • Option A: Grass, Fish, and Goat do not form a natural sequence; goats do not eat fish.
  • Option C: Goat, Cow, and Elephant are all herbivores (primary consumers) and do not prey on one another.
  • Option D: Tigers and lions are apex predators and do not consume grass, nor does the sequence follow a producer-to-consumer logic.
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SIMILAR QUESTIONS

CISF · 2023 · Q65 Relevance score: 6.68

Which one of the following groups of organisms correctly makes a food chain?

NDA-I · 2018 · Q41 Relevance score: 6.35

Which one of the following group of organisms forms a food chain ?

IAS · 2014 · Q80 Relevance score: 3.62

Which one of the following is the correct sequence of a food chain?

IAS · 2013 · Q6 Relevance score: 0.79

With reference to food chains in ecosystems, consider the following statements: 1. A food chain illustrates the order in which a chain of organism feed upon each other. 2. Food chains are found within the populations of a species. 3. A food chain illustrates the numbers of each organism which are eaten by others. Which of the statement given above is / are correct?

CDS-I · 2011 · Q41 Relevance score: 0.03

Which one among the following groups of items contains only biodegradable items?