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What will happen if the cnidocil is touc...

What will happen if the cnidocil is touched with a glass rod?

A

Nematoblasts will be discharged

B

Nematoblasts will not discharge

C

Nematoblasts will die

D

None of the above

Text Solution

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The correct Answer is:
A
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ARIHANT NEET-ANIMALIA -I (LOWER INVERTEBRATES)-CHAPTER EXERCISES (Taking it together) Assorted Questions of the Chapter for Advanced Level Practise
  1. Evolutionary sequence of canal system in sponges is

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  2. Digestion in Leucosolenia and other sponges is

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  3. What will happen if the cnidocil is touched with a glass rod?

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  4. Those cnidarians which exist in both (polyp and medusa) forms, exhibit

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  5. Regeneration in Hydra is

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  6. Hydra will regnerate from a fragment, if it contain

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  7. Which is correct about nematocyst in Hydea

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  8. Zoochlorellae and zooxanthallae present in Hydra are

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  9. In Hydra, egestion of undigested food and excretion of nitrogenous was...

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  10. In Hydra , both Flagella and pseudopodia are found in

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  11. Gonads of Obelia occur

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  12. Hydrozoa is distinguished from other coelenterates by

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  13. Spermatogonia in Hydra develop from

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  14. The body of Ascaris is

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  15. The proximal end of hydra has no adhesive disc, which secretes a stick...

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  16. The animals belonging to this class consist the following characterist...

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  17. Sea Anemone is characterised by

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  18. Comb plates of ctenophores possess

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  19. What is present in mesoglea of ctenophores which make it a loose layer...

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  20. Biradial symmetry and lack of cnidoblasts are the characteristics of

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