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Zoology

General Knowledge
6. Retina contains the sensitive cells called
 
  • A. rods and cones
  • B. cones and cortex
  • C. rods and pelvis
  • D. cortex and fovea
 
7. Number of bones in human body is
 
  • A. 206
  • B. 225
  • C. 220
  • D. 215
 
 
8. Birds excrete nitrogenous waste in the form of
 
  • A. urea
  • B. ammonia
  • C. fatty acids
  • D. uric acid
 
9. Night blindness is caused due to deficiency of
 
  • A. Vitamin A
  • B. Vitamin B
  • C. Vitamin E
  • D. Vitamin K
 
10. In scorpion, poison is present in the
 
  • A. leg
  • B. hand
  • C. sting
  • D. mouth