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Zoology

General Knowledge
31. Energy can be defined as the capacity to do
 
  • A. work
  • B. work fastly
  • C. work easily
  • D. work quickly
 
32. Snake venom is used as
 
  • A. poison
  • B. hormone
  • C. medicine
  • D. fertilizer
 
 
33. The enzyme which keeps the mouth clean from the action of bacteria is
 
  • A. erypsin
  • B. renin
  • C. zymogen
  • D. lyzozyme
 
34. Earthworms live in ----- in moist soil.
 
  • A. water
  • B. leaves
  • C. caves
  • D. burrows
 
35. ---- are the blood vessels which carry blood towards the heart.
 
  • A. veins
  • B. arteries
  • C. capillaries
  • D. none of these