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The............... are present from the ...

The............... are present from the 10h segment onwards in the earthworm

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.............. are present in the 7th, 8th and 9ih segment of earthworm.

The segments of the earthworm are......

The skeleton is present in earthworm is

The last segment of the earthworm is called......

I earthworm, what is present in the 6th segment?

The first segment of earthworm is called ....

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.

Identify the correct statements from the below about "Respiratory system of earthworm". (I) The earthworm has no special respiratory organs like lungs or gills. (II) Respiration takes place through the body wall. (III) Oxygen diffuses through, the skin into the blood. (IV) The skin is kept moist by mucous and coelomic fluid.

Segment of earthworm bearing mouth is

FULL MARKS-ORGAN AND ORGAN SYSTEMS IN ANIMALS -ADDITIONAL QUESTIONS SOLVED (II Fill in the blanks)
  1. The swollen segments 14 to 17 in mature earthworm is called the..........

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  2. The body setae are absent in the ............, last segments and allat...

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  3. The............... are present from the 10h segment onwards in the ear...

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  4. Nephrogenous eliminate....... Wastes.

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  5. ............ found in the coelomic fluid of earthworm plays an importa...

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  6. The dorsal wall of the intestine of earthworm is folded into the cavit...

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  7. In earthworm, the ..............vessel has no valves and non-contracti...

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  8. In earthworms excretion is effected by .......

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  9. ...... ... nephridia are present in the sth.gih segments

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  10. Special cells on the coelomic wall of the intestine called ..............

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  11. In earthworms, the male genital aperture contains two pairs of...........

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  12. The secretion of the prostate gland serves to cement the spermatozoa i...

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  13. .............. are present in the 7th, 8th and 9ih segment of earthwor...

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  14. The process of producing compost using earthworm is called .......

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  15. The first pair of wings of cockroach is called ........

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  16. In both male and female cockroach, genital apertures are surrounded by...

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  17. In the mouth parts of cockroach helps in grinding of food.

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  18. In between the foregut and midgut of cockroach ...... ... are present

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  19. In between the midgut and the hindgut of cockroach, ................ a...

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  20. The respiratory organs of cockroach are ......

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