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The posterior sucker is formed b y th e ...

The posterior sucker is formed b y th e fusion of the _________ segments.

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Fill in the blanks: (i) The posterior sucker is formed by the fusion of the _____ segments. (ii) The blood sucking habit of leech is known as_____.

Head of the cockroach is formed by the fusion of -segments

In humans, coccyx is formed by the fusion of vertebrae.

The sub pharyngeal ganglion in leech is formed b y fusion of ________ pairs of ganglia.

The coxal bone of the pelvic girdle is formed by the fusion of

Anterior and posterior suckers of a leech help in ___________and ________ .

__________ ganglion lies below the pharynx and is formed by the fusion of four pairs of ganglia.

Assertion (A): First 20 segments are most important organ for the earthworms. Reason (R) : If earthworm gets cut after the the 20th segment, the anterior half can regenerate, while the posterior half shall disintegrate after some time. So first 20 segments are important for earthworms.

SURA PUBLICATION-STRUCTURAL ORGANISATION OF ANIMALS -ADDITIONAL QUESTIONS & ANSWERS (FILL IN THE BLANKS)
  1. Blood sucked by a leech is stored in the .

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  2. In rabbit, the teeth are of different types. Hence, the dentition is c...

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  3. The posterior sucker is formed b y th e fusion of the segments.

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  4. The coelomic fluid of a leech contains .

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  5. contains bacteria, that helps in digestion of cellulose in a rabbit.

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  6. are metamerically segmented worms with well developed organ systems.

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  7. The body of a leech becomes shaped when extended.

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  8. In leech, the blood vessels called as capillaries containing .

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  9. Mention any two important characteristic features of mammals.

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  10. Blood, blood vessels and heart forms the .

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  11. The male genital pore of a leech is situated between the 2nd and 3rd a...

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  12. The mouth ofleech is a aperture situated in the middle of the anterio...

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  13. Leeches are effective in breaking up .

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  14. In a rabbit, the right and left auricles are separated by .

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  15. Leeches are in nature.

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  16. The dorsal side of a leech has pairs of eyes.

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  17. The last chamber of crop in a leech opens into .

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  18. The nerve ring surrounds the pharynx and is formed of suprapharyngeal ...

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  19. The autonomic nervous system comprises of sympathetic and nerves.

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  20. is a technique of bleeding in a patient to remove toxic impurities fro...

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