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Zoology Questions and Answers

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121. The rate at which the heart beats per minute in an adult averages
 
  • A. 72
  • B. 74
  • C. 84
  • D. 96
 
122. The length of the spinal cord is about
 
  • A. 60 cm
  • B. 45 cm
  • C. 10 cm
  • D. 90 cm
 
 
123. Which one of the following vitamins is considered to be a hormone?
 
  • A. Vitamin A
  • B. Vitamin B
  • C. Vitamin C
  • D. Vitamin D
 
124. Pearls are formed inside
 
  • A. oyster
  • B. molluscs
  • C. coral
  • D. snai
 
125. Acid rain results from
 
  • A. thermal pollution
  • B. land pollution
  • C. air pollution
  • D. radio active pollution