Consider the following : 1. Butterflies 2. Fish 3. Frogs How many of the above have poisonous species among them?
- AOnly one
- BOnly two
- CAll threeCorrect
- DNone
Explanation
All three categories of organisms (Butterflies, Fish, and Frogs) have poisonous species among them.
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Butterflies: Many butterfly species are poisonous or toxic, often due to sequestering toxins from the plants they feed on during their larval stage (e.g., Monarch butterflies accumulating cardenolides from milkweed). These toxins make them unpalatable to predators, and they often display warning coloration (aposematism).
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Fish: There are numerous poisonous fish species. Some produce toxins in their flesh (e.g., pufferfish with tetrodotoxin), while others have venomous spines or glands (e.g., stonefish, lionfish). Consumption or contact with these fish can be harmful or even fatal.
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Frogs: Many frog species, particularly those in tropical regions (e.g., poison dart frogs), produce potent toxins in their skin glands as a defense mechanism against predators. These toxins can be highly dangerous to touch or ingest.
Therefore, all three categories contain species that are poisonous.
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