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NTA Abhyas NEET2020BotanyAnimal KingdomPractice

Organ system level of organisation is observed in

Options

  1. AChordates
  2. BAnnelids
  3. CMollusca
  4. DAll of these

Correct answer

D. All of these

Step-by-step solution

Organ system level of organisation is seen in chordates, annelids and mollusc. i.e., in all the phyla from platyhelminthes on wards.

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