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Which one of the following statements is...

Which one of the following statements is incorrect ?

A

Insects have one pairs os antenna

B

Millipedes possess two pairs of appendages in each segment of the body

C

Prawns have two pairs of antenna

D

Animals belonging to the phylum-Porifera have nematocyst

Text Solution

Verified by Experts

The correct Answer is:
D
Nematocysts are the stinging capsules produced by the cnidocytes or cnidoblast present on the tentacles and the body of animals beloning to the Phylum-Coelenterata (Cnidaria). Cnidoblasts are used for anchorage , defence and for the capture of prey.
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ARIHANT NEET-ANIMALIA -I (LOWER INVERTEBRATES)-CHAPTER EXERCISES (Taking it together) medical entrances gallery (Collection of Questions Asked in NEET & in various Entrance Exams))
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  3. Which one of the following statements is incorrect ?

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  4. Which one is also called Hookworm

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  5. The cercarial stage of liverfluke is produced by

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  6. Which of the following is a mismatch pair

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  7. Which of the following exhibits metagenesis

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  8. Select the Taxon mentioned that represents both marine and fresh water...

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  9. Cellular organisation of body is present in

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  10. The kind of coelom represented in the diagram is charcteristic of

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  11. Match the following Columns

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  12. Which of the statements regarding coelenterates is/are wrong I. Cnid...

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  13. Which one of these is referred to as Venus flower basket ?

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  14. Choanocytes form the lining of paragastral cavity in

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  15. In the cycle of Ascaris lumbricoides rhabditiform larva undergoes 2nd ...

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  16. Infection of Ascaris usually occurs by :

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  17. Choanocytes are present in

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  18. Match the following Columns with reference to Taenia.

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