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Zoology Questions and Answers

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61. Carbon dioxide is sent out through the
 
  • A. skin
  • B. lungs
  • C. anus
  • D. kidney
 
62. The element which is rich in most leafy vegetables is
 
  • A. phosphorous
  • B. iron
  • C. zinc
  • D. calcium
 
 
63. What is the main component of bones and teeth?
 
  • A. calcium nitrate
  • B. calcium carbonate
  • C. calcium phosphate
  • D. calcium bicarbonate
 
64. The largest living animals belong to the group of
 
  • A. birds
  • B. fishes
  • C. reptiles
  • D. mammals
 
65. Central nervous system consists of the
 
  • A. brain and heart
  • B. brain and lungs
  • C. brain and the spinal cord
  • D. spinal cord and lungs