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Natural death does not occur in:

  • A.Porifera
  • B.Protozoans
  • C.Echinoderms
  • D.None of these

Answer: B

Correct answer: Protozoans

A protozoan divides into two daughters, each as young as the other, so nothing is left behind to die. The individual is potentially immortal and the line ends only through accident, predation or starvation. Natural death in the ordinary sense appears with the separation of body from germ cells in multicellular animals.

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