10. Structure of Earthworm and importance in agriculture

*नोट: यह सेक्शन रिवीजन के लिए है। अपना ज्ञान परखने के लिए ऊपर दिए गए क्विज़ में भाग लें।

1. Fleshy lobe overhanging the mouth:
   A) Setae  |  B) Prostomium  |  C) Shook  |  D) None
2. Segment containing female genital pore:
   A) 18th  |  B) 14th  |  C) 10th  |  D) 16th
3. Scientific name of Earthworm is:
   A) Pheretima posthuma  |  B) Eisenia foetida  |  C) Lumbricus  |  D) None
4. Total segments in earthworm body:
   A) 50-60  |  B) 100-120  |  C) 200-250  |  D) 10-20
5. Segments containing Clitellum:
   A) 1-3  |  B) 14, 15 and 16  |  C) 20-25  |  D) 90-100
6. Reason for red color of earthworm blood:
   A) RBCs  |  B) Haemoglobin dissolved in plasma  |  C) Chlorophyll  |  D) Salts
7. Excretion in earthworm through:
   A) Kidney  |  B) Nephridia  |  C) Skin  |  D) Lungs
8. Pairs of Hearts in earthworm:
   A) Two  |  B) Four (in segments 7, 9, 12, 13)  |  C) One  |  D) Eight
9. Phylum of Earthworm:
   A) Arthropoda  |  B) Annelida  |  C) Mollusca  |  D) Protozoa
10. Respiration in earthworm through:
    A) Gills  |  B) Moist skin  |  C) Trachea  |  D) Nose
11. Segment containing male genital pore:
    A) 14th  |  B) 18th  |  C) 20th  |  D) 5th
12. Why is earthworm 'Farmer's Friend'?
    A) Eats soil  |  B) Makes soil porous and fertile  |  C) Kills pests  |  D) Provides water
13. Organ for Locomotion in earthworm:
    A) Legs  |  B) Setae  |  C) Wings  |  D) Tail
14. First segment of earthworm body:
    A) Clitellum  |  B) Peristomium  |  C) Pygidium  |  D) Mouth
15. Function of 'Gizzard' in alimentary canal:
    A) Digestion  |  B) Grinding soil and food  |  C) Absorption  |  D) Excretion
16. Type of Circulatory system in earthworm:
    A) Open  |  B) Closed  |  C) Mixed  |  D) Absent
17. Structure increasing absorption area in intestine:
    A) Typhlosole  |  B) Gizzard  |  C) Pharynx  |  D) Amylase
18. Structure protecting eggs in earthworm:
    A) Soil  |  B) Cocoon  |  C) Net  |  D) Leaf
19. Opening of 'Exonephric' nephridia:
    A) In gut  |  B) On body surface  |  C) In blood  |  D) In heart
20. Sexuality of earthworm:
    A) Unisexual  |  B) Hermaphrodite (Bisexual)  |  C) Male only  |  D) None
21. Structure producing the Cocoon:
    A) Mouth  |  B) Clitellum  |  C) Tail  |  D) Nephridia
22. Cells functioning like Liver in earthworm:
    A) Lungs  |  B) Chloragogen cells  |  C) Heart  |  D) Brain
23. Main function of Prostomium:
    A) Eating  |  B) Digging soil and sensory  |  C) Breathing  |  D) Walking
24. Part of gut located in 8th segment:
    A) Mouth  |  B) Gizzard  |  C) Intestine  |  D) Pharynx
25. Sperms are stored in:
    A) Testes  |  B) Spermathecae  |  C) Ovary  |  D) Blood
26. Nitrogen content in Vermicompost:
    A) 0.5%  |  B) 1.5 - 2.5 percent  |  C) 10%  |  D) 5%
27. Segments where Setae are absent:
    A) First  |  B) Last  |  C) Clitellum  |  D) All of the above
28. Function of 'Enteronephric' nephridia:
    A) Water conservation  |  B) Digestion  |  C) Blood formation  |  D) None
29. Location of 'Suprapharyngeal ganglia' in nervous system:
    A) 10th segment  |  B) Between 3-4 segments  |  C) Last segment  |  D) 20th segment
30. Average earthworms emerging from one cocoon (P. posthuma):
    A) 10  |  B) 1  |  C) 100  |  D) 0
31. Location of 'Calciferous glands' in gut:
    A) Stomach  |  B) Intestine  |  C) Mouth  |  D) Gizzard
32. Function of Porphyrin pigment:
    A) Cold protection  |  B) UV rays protection  |  C) Rain protection  |  D) Enemy protection
33. When is earthworm 'Uricotelic'?
    A) Excess water  |  B) Water scarcity  |  C) Always  |  D) Never
34. Segments containing Testes:
    A) 5, 6  |  B) 10 and 11th  |  C) 18, 19  |  D) 20, 21
35. Location of Fertilization in earthworm:
    A) Internal  |  B) Inside Cocoon (External)  |  C) In soil  |  D) In water
36. Shape of Earthworm Setae:
    A) L-shape  |  B) S-shaped  |  C) Straight  |  D) Round
37. Segments containing 'Lateral-esophageal' hearts:
    A) 7, 9  |  B) 12, 13  |  C) 10, 11  |  D) 5, 6
38. Haemoglobin location in earthworm blood:
    A) In corpuscles  |  B) In Plasma  |  C) In cells  |  D) None
39. Pairs of Spermathecae in earthworm:
    A) One  |  B) Four pairs (in 6, 7, 8, 9)  |  C) Two  |  D) Eight
40. Segment where Typhlosole begins:
    A) 15th  |  B) 26th  |  C) 100th  |  D) 50th
41. Location of Testis sacs:
    A) Below gut  |  B) Above gut  |  C) In tail  |  D) In mouth
42. Primary site of food digestion:
    A) Mouth  |  B) Stomach and Intestine  |  C) Gizzard  |  D) Pharynx
43. Excretory products of earthworm:
    A) Urea only  |  B) Urea and Ammonia  |  C) Ammonia only  |  D) Uric acid
44. Location of Photoreceptors:
    A) Tail  |  B) Dorsal surface and anterior part  |  C) Belly  |  D) Eyes
45. Innermost layer of Body wall is:
    A) Epidermis  |  B) Cuticle  |  C) Muscular layer  |  D) Peritoneum