Which statement about the golden poison dart frog is true?

Which statement about the golden poison dart frog is true?

• A. It is the least poisonous frog.
• B. It can detoxify other frogs.
• C. It only secretes toxins when attacked.
• D. It is the most poisonous frog on earth, containing enough poison in its skin to kill 10 humans.

Answer: (D)

The idea being tested is how extreme chemical defense works in nature. The golden poison dart frog is famous for being the most poisonous frog on Earth; its skin contains batrachotoxin, an extraordinarily potent toxin. Because the toxin is in the skin and present regardless of provocation, a tiny amount can be fatal to a human, which is why the statement that it could kill about ten humans is considered true. This isn’t about detoxifying other frogs and it isn’t something the frog does only when attacked—the toxin is a constant defense. The other claims don’t fit: it isn’t the least poisonous, and the idea that it detoxifies others or only secretes toxins under threat doesn’t align with how its skin toxins function.