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Question

Nematoblasts of Hydra help in

A
Attracting prey
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B
Detecting prey
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C
Paralysing prey
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D
None of the above
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Solution

The correct option is C Paralysing prey
The nematoblasts/nematocysts in the cnidocytes/cnidoblasts can sting the prey on mechanical stimuli by ejecting a microscopic harpoon like structure that may have neurotoxin/hypnotoxin properties.
So, the correct answer is 'Paralysing Prey'.

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