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Biology 2006 WAEC Past Questions

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16
Gaseous exchange occurs through the following structures in some organisms except
  • A. spiracle and tracheae
  • B. alveoli and lungs
  • C. stomata and lenticels
  • D. chloroplast and plastids
View Answer & Discuss (1) WAEC 2006
17
Which of the following organs in mammals is not excretory in function?
  • A. Liver
  • B. Kidney
  • C. Pancreas
  • D. Lungs
View Answer & Discuss WAEC 2006
18
The ventricles of the mammalian heart have thicker
muscular walls than the auricles because the
  • A. ventricles are larger
  • B. ventricles receive more blood
  • C. ventricles pump blood to longer distances
  • D. auricles have smaller capacity
View Answer & Discuss WAEC 2006
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19

Which of the following substances is not an excretory product in mammals?

  • A. Carbon dioxide
  • B. Water
  • C. Faeces
  • D. Urea
View Answer & Discuss (13) WAEC 2006
20
An organism which maintains a constant temperature irrespective of environmental temperature fluctuation is
  • A. an insect
  • B. a mammal
  • C. an amphibian
  • D. a fish
View Answer & Discuss (1) WAEC 2006
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