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The nerve chord in earthworm originates ...

The nerve chord in earthworm originates from

A

suprapharyngeal ganglia and has a fused pair of ganglia in each segment from 3rd to the last

B

suprapharyngeal ganglia and has a fused pair of ganglia in each segment from 4 th to the last

C

suprapharyngeal ganglia and has a fused pair of ganglia in each segment from 5th to the last

D

suprapharyngeal ganglia and has a fused pair of ganglia in each segment from 6th to the last

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The correct Answer is:
C
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ARIHANT NEET-STRUCTURAL ORGANISATION IN SOME ANIMALS -CHAPTER EXERCISES (C) MEDICAL ENTRANCES GALLERY (COLLECTION OF QUESTIONS ASKED IN NEET & VARIOUS ENTRANCE EXAMS )
  1. In the male reproductive system of cockroach A, B, C, D and E r...

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  2. What external changes are visible after the last moult of a cockroach ...

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  3. The nerve chord in earthworm originates from

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  4. In the mouth parts of cockroach the galea and lacinia form parts of ...

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  5. Frogs differ from humans in possessing

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  6. The tympanic cavity, in frog communicates with pharynx ventrally throu...

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  7. Which of the following correctly descirbes the location of some...

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  8. If a live earthworm is pricked with a needle on its outer surface with...

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  9. Blood of earthworm is

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  10. In Pheretima, septa are absent between which segments

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  11. In which of the following animals, respiration occurs without any r...

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  12. In a copulating pair of earthworm, which two processes take place ?

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  13. What is the common between earthworm, leech and centipede?

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  14. Which of the following is the correct statement about the circulatory ...

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  15. Salivery gland in earthworm is found in

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  16. How many ovarioles are found in each ovary of cockroach ?

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  17. Stink gland is found in

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  18. Earthworms have no special sense organs still they are sensitive...

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  19. The role of typhlosole of earthworm is to

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  20. How many lateral ' hearts ' are found in earthworm ?

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