Civil Services Prep

Prelims 2024 · Environment · Question 69

Consider the following: 1. Butterflies 2. Fish 3. Frogs. How many of the above have poisonous species among them?

  1. Only one
  2. Only two
  3. All three
  4. None

Answer

All three

  1. Butterflies – Yes. Some butterflies/moths are poisonous or unpalatable due to toxins accumulated from host plants (e.g., milkweed butterflies). Verdict: Correct.
  2. Fish – Yes. Several fish are poisonous, such as pufferfish containing tetrodotoxin. Verdict: Correct.
  3. Frogs – Yes. Poison dart frogs and many toads/frogs have toxic skin secretions. Verdict: Correct.

Hence, all three have poisonous species among them.

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