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Organisms and Populations — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYOrganisms and Populations3 Marks
Question
How does prey species defend themselves against predators?
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Answer

Prey species show following defence mechanisms:
  1. Showing camouflage for concealment.
  2. Moving at faster speed for escape.
  3. Cryptic colouration to avoid the detection. This is seen in some insects. Also predators display such cryptic colouration to avoid detection. E.g. Colouration in frog.
  4. Bad taste due to accumulated chemicals.
    E.g. The Monarch butterfly is highly distasteful to its predator bird as it stores a special chemical in the body during its caterpillar stage by feeding on a poisonous weed.

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