How have some species of insects and frogs evolved to avoid predation?

How have some species of insects and frogs evolved to avoid predation?
  1. By producing and storing poisonous chemicals
  2. By acquiring special chemicals during their developmental stages
  3. By being cryptically:coloured (camouflaged)
  4. By using thorns as a means of defence

Solution

Some species of insects and frogs are cryptically:coloured (camouflaged) to avoid being detected easily by the predator.

Asked in: NCERT

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