Trichocyst and nematocyst are meant for what purpose?

Options :
  1. excretion and osmoregulation
  2. reproduction
  3. defence
  4. locomotion and movement
Answer and Explanation :-

Answer: Option 3

Explanation:

Trichocyst and nematocyst release toxins,which is used to kill prey,thus used in defence mechanism

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I want you to learn the lesson of the lotus. This flower springs forth from muddy waters. It raises its delicate petals to the sun and perfumes the world while, at the same time, its roots cling to the elemental muck, the very essence of the mortal experience. Without that soil, the flower would wither and die.
-Colleen Houck