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Discussion

Experienced birds do not attack the Himalayan caterpillars because they are

  • A.Repulsive
  • B.Very aggressive
  • C.Inedible
  • D.Diseased

Answer: C

Correct answer: Inedible

The passage says the caterpillar's prominent colour informs would-be predators of its inedibility, and that a bird which does eat one vomits it and afterwards avoids similar species. Experience teaches the bird that the caterpillar cannot be eaten, not that it is dangerous or diseased.

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