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CSS :: Phylum Annelida


61.  Setae in Pheretima are:
A. Straight rod - like B. Elongated 'S' - shaped
C. U' - shaped D. Comma - shaped

62.  Setae in earthworm occur in a segment:
A. As one transverse ring B. As scattered structures
C. As one pair of structures D. On lateral side only

63.  Dorsal pores in Pheretima are openings of:
A. Nephridia B. Coelomic cavity
C. Digestive canal D. None of these

64.  Which septum is absent in Pheretima:
A. 6?7 B. 9?10
C. 7?8 D. 14?15

65.  Septum in Pheretima is made by:
A. Double layer of coelomic epithelium B. Double layer of coelomic epithelium and muscles
C. Only epidermis of the body D. Only endodermis of body

66.  Coelomic fluid in earthworm consists of:
A. Only plasma B. Plasma and nucleated corpuscles
C. Plasma and non-nucleated corpuscles D. None of these

67.  Coelomic fluid in earthworm is:
A. Acidic B. Neutral
C. Alkaline D. Of variable pH

68.  Which of these is a besexual animal:
A. Leech B. Honey bee
C. House-fly D. None of these

69.  Segment of earthworm bearing the mouth is called:
A. Prostomium B. Peristomium
C. Deuterostomium D. None of these

70.  Coelomic fluid oozing out of dorsal pore help in:
A. Feeding B. Excretion
C. Respriation D. Locomotion




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